I had those same kind of thoughts concerning receiving the Melchizedek Priesthood and I finally decided I needed to be honest and that there was no other faithful choice for me. Also, serious sins must be confessed to the Bishop, otherwise you have not fully repented, even though you've been valiant in not repeating your mistake. I learned this the hard way on other occasions. For the Priesthood there is a pretty clear scripture which ultimately served as a rebuke to soften my heart. Speaking of the priesthood, it states: "That they may be conferred upon us, it is true; but when we undertake to cover our sins, or to gratify our pride, our vain ambition, or to exercise control or dominion or compulsion upon the souls of the children of men, in any degree of unrighteousness, behold, the heavens withdraw themselves; the Spirit of the Lord is grieved; and when it is withdrawn, Amen to the priesthood or the authority of that man." If you were to take out the word priesthood and replace it with "blessings" the scripture could be likened unto you this way. "Amen to the blessings of the temple and the ratifying power of the Holy Ghost for that man." You'd be robbing the one you love. If a covenant is entered into under false pretenses the seal, or ratifying power, of the Holy Ghost will not be there. I know it is tough but it is better to bring sin into the light; a true sign of repentance. The fact that it shakes you up in such a manner seems to indicate the maturity you have in realizing the severity of your actions, which is good. I know you want the blessings of the temple and that they are precious to you, don't let the influence of Satan lull you into losing such a blessing. You have my love and admiration as your brother in Christ for desiring to do what's right and posting here, may you be always steadfast and true. :) EDIT: Noticed a mistake I made, sorry about that.