i been with my boyfriend for 5 years, since we started dating he acted weird. he would not let me touch him or kiss him unless he's really sexually stimulated. a few months ago we had a three some with another man( yes a man) and since than everytime we are having sex all he does is talk about the man's cock it really bothers me and i told him that it had just been a fantasy,he's fantasy and to leave it alone but he won't stop talking about it and i know just by the thought of it it excites him. a few days ago i was (yes) snooping on his computer and i found out he has been answering to mans adds on the internet for one night stands. i haven't confronted him but i don't know what to do. i love him and its hurting me of just thinking that i'm going to loose him but i really need to know. something is telling me that he is sleeping around with man and woman also but i just don't know how to approach the situation. HELP!