person0

I served my mission in Florida.  I wore the 50/50 cotton poly garments always.  I had a couple of drilux but they were way more uncomfortable for some reason.  Now I still wear the same type of garments.

Nice dodge.  Now, please answer the question:  how do you deal with a person who thinks (s)he has a revelation allowing them to do something you believe to be in error?
I have no problem with the idea that prophets are individually fallible.  But we aren't dealing with individual prophetic teachings, are we?  We are dealing with dozens of prophets, hundreds of temple presidents/matrons, thousands of stake presidents, and tens of thousands of bishops.  
And then--there's you, who by your own admission hate the garment.  If you have no obligation to choose not to hate the garment; whence this purported obligation of others to choose to stop (as you perceive it) hating you?

Again, how can our opinions (or those of your ward members) possibly matter if you know that you are doing what God wants you to do?  The peace and confidence which stem from that knowledge overwhelm any opinion other mortals have to offer.  If you are not feeling peace, it may be time to revisit your decision.
And how is it that your ward members know your garment-wearing habits?  Unless you go out in public in immodest clothing such that it's obvious, I don't know how they would know, unless you told them, which takes me back to that whole bit of doing what you know the Lord wants you to do...

The first presidency disagreed with RMGuy and you:
“Church members who have been clothed with the garment in the temple have made a covenant to wear it throughout their lives."
https://www.lds.org/ensign/2002/03/prepare-for-blessings-of-the-temple?lang=eng

This is a sterling example of straining out little gnats while swallowing camels whole. The covenant consists of accepting and living the instructions given. To try to parse out the instructions from the covenant is to try to separate the flour from the sugar in a slice of cake. Yes, felicityswims, you did indeed covenant to wear the garment both night and day.
As I said, we are a discussion group, not a judicial panel. Do what you want. But don't come claiming that you are justified in not keeping your covenants, even in relatively small things, and expect us to jump on board and support you in your dishonesty.

Obviously not. My reading comprehension difficulties are the root of your problems.

If this is true, why come ask a bunch of strangers on the internet what they think?  When I am doing something I know God approves of, I am completely at peace and more confident than words can describe.  I have no need to tell anyone what I'm doing, ask others' opinions, get their reassurance, etc.  I just do what I know is right, without fear.  Your posts here don't reflect that.
Meanwhile, back to # 7, what was the sequence:
A) Don't wear the garments 24/7, then ask if doing that is OK
OR
B) Wear the garments 24/7, then receive revelation that you can wear them less often
I submit that it makes a difference.

It somewhat depends on what one means by try. I'm convinced that someone making excuses to get by on technicalities so as to think they're getting away with avoiding anything they find dis-pleasurable is not really trying after all.

The above literally tells us all we need to know about felicityswims. I'm afraid this is a lost cause.

So you have a testimony that God himself approves of your disobedience or "casual observance" of your covenants. Okay, whatever. We're a discussion group, not a judicial panel.
But consider this, felicityswims: Salvation does not consist in finding loopholes, or in explaining to God why your lack of effort is excusable, or saying, "Lord, I didn't do what you told me to do, but I still want to be saved. So save me."
Salvation consists in becoming what God wants us to become. The first law of heaven is obedience. If we cannot obey a simple commandment to wear underwear, how can we expect to gain what God has in store for them that love him?

But what if I "know in my heart" that judging you--even hating you--is just peachy with God?  Who are you to tell me I'm in the wrong?
Every now and again, we just plain botch the personal revelation process.  Hence--church standards.

The people are right.
I am convinced this is not true. At some point. God himself expects us to do more than just try. We are expected to be perfect (Matthew 5:48; 3 Nephi 12:48), and not merely keep chugging along.

It's about you excusing yourself by wording so you don't have to do something that you can't humble yourself enough to abide. That is the very definition of technicality.
It actually is helpful if you'd listen and accept. Do you go to church because you're doing the bear minimum of what you have been commanded or do you do so because you love God and your fellow man? Do you keep the word of wisdom at a bare technical minimum because that's what you covenanted to do or do you do your best to treat your body like a temple and respect the gift it is? Do you read a verse of scripture a day because that's fits the bill of daily scripture reading or do you feast upon the scriptures, love the word of God, and treasure the blessing that they are?
The garment is a blessing and a treasure that we should look for reasons to wear, not reasons not to. We should view it as the gift and blessing that it is. If you hate them then you hate God's blessing to you.
No one hates you for it. Sorrow for you? Yes. Worry for you? Yes. Hope you learn, grow, and humble yourself? Yes. But not hate.
When do you not need to feel close to Heavenly Father?
Seriously...apply this to anything else:
"I tried keeping the word of wisdom but doing so made me hate it. If I hate it what kind of relationship is that giving me with God?"
"I tried going to church but doing so made me hate it. If I hate it what kind of relationship is that giving me with God?"
"I tried going to the temple but doing so made me hate it. If I hate it what kind of relationship is that giving me with God?"
"I tried serving my fellow man but doing so made me hate it. If I hate it what kind of relationship is that giving me with God?"
Isn't it obvious that the key to resolving issues where we hate things from God is to humble ourselves and learn to not hate them rather than to abandon them and stop all over that which God blesses us with?

Ah technicalities. The path to true salvation.

Interesting. How do you "know" this? Perhaps the same way you "know" God told you not to wear the garment as instructed? You may wish to revisit what you think you "know".
Here is a short list of a few of the many people whom God apparently didn't want putting their health first:
Jesus Christ Abel Noah Stephen Peter Paul Nephi (take your pick as to which) Isaiah Joseph Smith

At first I was going to tell you to just marry her and then enjoy a sexual relationship with her, because that would be better than eventually falling into sin. . . but then you wrote almost at the very end that you are already married.    Sexual thoughts happen from time to time, try to ignore them and move on.  You are fantasizing about your thoughts which is not going to help you, ever!  It is also telling that you waited until the end to state that you were married.  You need to stop playing these little 'games' immediately.  Try to find ways to serve your wife, that will strengthen your love for her.  Also, feel free to explain to your wife that you are being plagued with sexual thoughts about other women and are working to rid them from your mind (you don't have to tell her the specific person/people).  Between service and open, honest communication, you could take your relationship to a whole new level.  For all you know, serving her could turn her on by her feeling more loved and close to you; open communication would lead to trust and closeness leading to more turn on.  Hmm. . .  wife turned on = happy happy fun times!  You won't know unless you try!  

At first I was going to tell you to just marry her and then enjoy a sexual relationship with her, because that would be better than eventually falling into sin. . . but then you wrote almost at the very end that you are already married.    Sexual thoughts happen from time to time, try to ignore them and move on.  You are fantasizing about your thoughts which is not going to help you, ever!  It is also telling that you waited until the end to state that you were married.  You need to stop playing these little 'games' immediately.  Try to find ways to serve your wife, that will strengthen your love for her.  Also, feel free to explain to your wife that you are being plagued with sexual thoughts about other women and are working to rid them from your mind (you don't have to tell her the specific person/people).  Between service and open, honest communication, you could take your relationship to a whole new level.  For all you know, serving her could turn her on by her feeling more loved and close to you; open communication would lead to trust and closeness leading to more turn on.  Hmm. . .  wife turned on = happy happy fun times!  You won't know unless you try!  

To quote President Uchtdorf, Stop it.  If things are "fairly boring" with your wife, make them interesting - seriously, just do it.  Stop interacting with the woman at church.  No more games.  No more teasing.  Civility and politeness when public interaction is required, avoidance otherwise.  When you start having thoughts about this other woman, replace them with something better.  It is seriously that simple.  (Simple is not the same as easy.)

You and your former boyfriend both need to confess this sin and work through the repentance process with the bishop - no matter how scary it may seem, no matter how much you may think you can do it alone, it cannot be done without the help of the Lord's agent for such things.  Everything will be much better as soon as you start this process.
The bishop is not going to tell anyone what you confess - it is something he must keep to himself.

Sexual sins HAVE to be confessed to the Bishop.  

There are consequences to every decision.  The commandment is to multiply and replenish the earth.  You decided on not having children.  People proselyting for you to multiply and replenish the earth is a consequence to that decision.  Just take it for what it is and move on.  You can CHOOSE NOT to be offended.
It's the same for people who choose to dye their hair with all 7 colors of the rainbow.  People will stare, people will think you're a rebel, people will think you're an attention-starved person, people will think it's cool, and people will get offended (there's always something to be offended about including somebody culturally appropriating clown hair).  You can choose to be offended by their reactions or you can choose to have patience with those who are just not that savvy about somebody going against the norm.
I for one will be one of those who would say - man!  You should have children!  And that's because I have 2 children and they make me so happy that I wish everybody could experience this kind of happiness.

I like what @zil said about just not giving a reason for why.  I think people are wrong to treat you differently or to be cruel to you in any way because of your decision.  That being said, I also believe that your decision is wrong.  As you pointed out, it is against the teachings of the Church, and the commandments of God.
I'm sure you are likely well familiarized with this topic and will leave it to the single quote.
My wife and I are unable to bear our own children.  As a result, it is hard for me to have any sympathy for you, because I know we would do almost anything if it meant she would be able to bear children.  My wife can definitely empathize with you; she has always received a similar, albeit slightly different, form of ousting among the women at church.  Most of the women seem to only talk about their children, and even now that we have adopted children, they all talk about giving birth and taking care of babies and she is still left out of the conversations.
People are flawed and make mistakes.  I believe it was a mistake in the first place to make the decision to not have children, if you have a healthy, capable, body that would function to do so.  It is also a mistake for people to treat you unkindly,or to harass you as a result.  I don't think you will ever escape it until you are aged beyond the years where you would be expected to have children in your home (even then only possibly), because people everywhere mess things up.  I do sincerely hope that you find something that works to help lessen the backlash, but I think you will find few in the church who will condone your decision.

Not being a female, it's hard for me to relate.  You're right that in Elders Quorum we seem to miss out on some of that drama (our first was born 3 years after marriage--not for lack of trying--and it was amazing how much judgment my wife faced in those first few years due to our purported "selfishness", whereas I heard nary a word).
I don't know how to make it hurt any less; but as for a snappy retort ripped from today's headlines, may I suggest you try the line--"Actually, I'm gay"?

On my mission I was given raspberry iced tea to drink by someone when tracting.  I drank it, completely oblivious, and so did my companion.    The whole time I was wondering why it tasted a bit weird.  Then upon leaving I finally realized what it was because I have had iced tea a couple of times since my grandmother used to drink it.  I told my companion that I'm pretty sure we had just drunken tea.  We both shrugged it off because we could not reasonably have known.  I'm pretty sure situations like this generally fall under the Corinthians 10:27 rule, and I just keep on going with a clear conscience.

Have you received a witness from the Holy Ghost testifying of the truthfulness of the Book of Mormon?  If not, that is 100% okay, however, you definitely want to start there, in seeking and receiving that.  Whatever personal assurances you have of the truthfulness of the gospel (as presented in the LDS Church) will always be a source to rely on for strength.  Building that personal testimony of the truthfulness of the restored gospel should be priority number 1.  Eventually, your perception of everything else should fall into place as long as you don't harden your heart against it.
Regarding your other concerns, there are few here who would not highly value eternal (temple) marriage, and families.  My father, who is Muslim, did not speak to me for three years following my marriage (however, I was initially told it was going to be forever).  This was not because he couldn't attend, but because he felt that there was no longer a real hope that I would ever convert to Islam.  My wife and I are unable to have our own children and eventually decided to foster/adopt.  I would never have been able to make these significant life decisions without a strong testimony of the restored gospel.
The truth is the truth, there is nothing you or I or anyone else can do to change it.  Either the commandments you have asked about are true, or the are not.  Each of us must determine this for ourselves.  It is not really a decision, more so preparation and revelation.  God will tell you if it's what he wants for you or not, and in His time.  Focus on your testimony and things will fall in line as they should.  For all you know, you may never be called to marry in this life anyway, or, God may bestow upon you a drastic change of heart and you will actively start to desire and seek it.