<human>: So our relationship is complex yet simple. We've been dating for 8months. It all started with a one night stand and we were both seeing other people. 

Then dynamics changed in february when he broke up with his other (long distance) girlfriend. Around this time I told him that despite his encouragement, I didn't like dating other men and I didn't want to share him with anyone anymore. Our relationship went through a big growth spurt- he met all of my friends and I met all of his. 

We were seeing each other about 5x a week. Then I had a bad episode of depression. He also has depression and is one medication where as I am not on medication. Anyhow, he then proceeds to tell menthat we should go back to seeing each other for the same amount of time we don't see one another (ex: if I sleep over 2 nights, we can't see each other for 2 nights). 

I was fine with this until I noticed some of our condoms were missing. I confronted him about it and he said we had used them and that he was being honest about not sleeping with anyone else. I don't believe it for one second. He has been married 3x, loves all women, lives next to a popular bar, is very charming and all these things together make it hard for me to trust him. I want to, but I know how he thinks... He's been married three times, of course he is going to know the right things to say to not upset me. 

 He said he "really" likes me and I've said I love you, knowing full well he wouldn't be able to say it back. He told me "women always fall in love with me." I know, what an ego, but if you met him you'd see. So I'm distressed, do I leave him or do I stick around?

Can you condense the text into a few key points?
<bot>: I think my boyfriend is cheating on me, even though I already confronted him. How do I work on trusting him?