It's so hard to give up the physical side of the relationship. I told my H (a few weeks ago when he said, for the 3rd time in 3 months, that he was thinking we needed to separate) that if that seriously was the case, then after the holidays we would do just that. BUT, between now and then, no sex. That we needed to start cutting those ties now because I wouldn't/couldn't be his friend with benefits during any S. (Boy was that hard...I like the physical side of our relationship.)
Of course, since he says he is now committed to our M the physical stuff is on. (Until he changes his mind again...dam roller-coaster just doesn't stop! LOL.)