ok so here is my story and i'd like some insight - I dated my now ex-boyfriend for 3 years - things were great at the beginning, and then slowly got bad and we fought and argued ALOT - he has depression and bipolar disorder i believe. anyways, the one thing we always had great was sex...in august, he broke up with me, and 3 days later began dating a 17 year old girl, and he is 26. I was crushed, and never had much contact with him the whole first month. However, one night in september, he called me up drunk, and we hooked up and talked and i spent the night...this has happened 5 times since then...twice in oct, once in novermber, and twice already in december. I know he has had sex with her, but his excuse he usually uses with me is that he is drunk and uses bad judgement, and that she isnt good at sex. Backing up, in October, the second time we hooked up, he broke up with her, and one hour later was hooking up with me-and then for a week after that he was "deciding" between me and her. well, every time ive hooked up with him since then, he tells me he loves me, what a great girlfriend i was, how awesome i am, etc. then, tonight, i went over there again...he told me that he didn't know if me and him are going to get back together (which i really dont think is what i want), and he said that he sees a long term relationship with her, etc. my question is, why in hell would he have cheated on her 6 times already (they've only been together for 4.5 months), when he claims he loves her?!? and i know he has more feelings for me than just sex because of what he says and the way he looks at me...I know that she kinda caught him once, and he lied and denied everything...but thats what i want to know - does someone who really loves someone cheat on them? why would he cheat if he could teach his current gf how to have sex, and why would he keep wanting to have sex with me if he loves her? Please don't think less of me here, I know i probably sound like a tramp and everyone always beats up on the other woman, but try to understand...just some advice on this whole cheating thing...can you even have a good relationship and a long and happy one if all this is happening this soon?? any comments or advice would be helpful - I just wish I knew why he keeps calling and why he can't leave me alone...if it were just for the sex, he could get that from his current gf...