Thanks everyone for your replies, I guess I knew the answer deep down but was unsure. I guess now I have another question...
...Will I be able to still talk to him while he is going through separation? Can I just be friends and still talk as long as I don't date him until the divorce is final? This question will probably be more difficult to answer, if someone could give me scripture or some type of authoritative answer rather than opinion, it would be much appreciated! Thanks everyone for your help! I wasn't expecting so many answers this soon. Everyone's insight was helpful. Thank you again, this has been weighing heavily on me.