Hopefully this is an appropriate forum for this topic... This is an issue of great importance to me right now. I am interested to know what you all think consitutes "cheating" in an exclusive romantic relationship. Does there have to be physical contact for it to be cheating? Would you consider it cheating if your significant other talked to a MOS (or same sex, if homosexual) for hours at a time on the phone, sharing personal thoughts, feelings, etc? How about spending time with a MOS in secret, but not doing anything except friendly, platonic things? If it's physical contact, does it have to be explicit sexual acts? How about a french kiss? How about flirtatious touching (on arms, back, etc)? I guess for me, it comes down less to specific acts than to this: If you could do it and tell your significant other about it, without either you feeling guilty or him/her getting angry, then it's not cheating. If either a) you feel guilty doing it, or b) you partner would be hurt if he/she found out, then it's borderline. If you feel guilty and they would be hurt, then it's definitely cheating. Please let me know what you think.