I went through this with my husband during our divorce, and interestingly a good friend of mine (a very strong Christian) who was separated from her husband had a similar situation. Sometimes the sexual connection can be very strong. There's some good information about it on this website... I'm not sure where it is, but it mentions sex sometimes pulling a marriage back together.
The one thing I will admit, it was very difficult at times. There were times I felt "used." The way I dealt with this was by working VERY hard at detaching, and keeping in mind that until the divorce was final, I was legally married. He was still my husband!!! People have sex with their spouses. Actually, the crazy ones are those having sex with someone else's spouse!!! Now that's really being "used"!!!!
Glad to hear you've discovered your sexuality!!!! For some couples things can get very heated during separation and divorce. In trying to save a marriage it's okay to use whatever advantages you can. Just try to protect yourself by emotionally detaching.
There is no arriving, ever. It is all a continual becoming.