For the last 5 years I have been friends with a former coworker . . . in the beginning we started spending a lot of time together (hanging out, movies, sporting events), but he had a girlfriend. They broke up, and we started a friends with benefits relationship, shortly after that things went sour between us and he started dating someone . . . since then we've stopped working together and have continued our arrangement. I have asked if he is still dating the previous girlfriend, and he insists that he isn't, but I don't quite believe him.
Anyway, besides feeling guilty over being a possible participant in cheating, I just feel like I want to spend more time with him than he's willing to give (we no longer spend time hanging out, going to movies, etc.). I recently told him that I had to stop the sex portion of our relationship because I am going crazy trying to keep feelings and sex separate, but I am having a terrible time cutting him off completely because he's been such a big part of my life for the last 5 years. Any advice on how to get over the anxiety of losing a friend (but perhaps restoring my sanity) and end it completely?