1) I call BULL on the FWB biz. Maybe that's how you'd like to feel. I don't buy for a minute that is what is going on with you. Be honest with yourself.
2) XH has not been in a monogomous R for a very long time I'd guess anyway. Do NOT have unsafe sex with him.
3) Quit trying to figure our what last night meant for your life 15 years from now or even a year from now. You can't. Sorry, you are psychic. Astrology won't help you either.
4) Again, no sudden action. You need time to breathe, think, reflect. What works for YOU?
No matter what, that is the question that still matters the most. Work on being who YOU want to be.
I agree with OT here..
I don't think you can be F*** buddies with an ex....I don't think either one of you can get your mind wrapped around that the way it should be..I believe one or both of you will let your emotions take over before it's over with...FWB's are about one thing...sex..and that's it..