Originally Posted by Kevin_s
The way he is acting is out of desperation, and not necessarily his true feelings. You've stated that he doesn't have the best household to live in, and all of the important people in his life have passed away, leaving him stranded.
I agree with your position but I think that just for the heck of it, I'll see if I can look at this from his perspective.
He cheated, he broke your trust, and he feels like a jackass (he IS human). And for some odd reason he did so on a whim, and now realizes that he has MAJORLY messed up with the only person that he can still confide in, be treated decently, and be cared for. It's tough, almost as tough as what you're going through.
Even though you're staying strong (I commend you), I know that you are having just as much of a hard time as he is.
People say, do, act in crazy ways when in desperate times. Don't hold what he's saying to you now against him.
Personally, I think that though you needed to act and talk harshly towards him, that you could have been a little more reserved. He knows he messed up, but throwing in how great you look and other things is a bit over the top. He could have just never told you what he did, give him some credit for that.
You don't need to say how much better you are than him to show it if that makes sense. I don't cheat on my girlfriends, and I won't lie to them. If I felt I needed to cheat, I would just break up with the girl because it's not fair to them. And if I was drunk (even though I choose not to drink haha) and hooked up with a girl, I would confess what I did, and understand that I messed up, I wouldn't forgive my significant other either and I would bow out gracefully so that they can be happy.
I think this guy has attachment issues, if he's saying "you are my life" that's a big red flag. No other person should be why you're alive, you are both independent people enjoying the affection and time with one another.
Who knows what the future holds for you both, though he made a mistake (a VERY big one, especially since he had sex with her, and then you) but other than that if he was a fairly decent boyfriend, I would hope you could show a little more compassion for him and still be stern on your decisions.
My heart goes out to you for what you have to deal with now, and I wish he could be a bit more mature and stop trying to put so much stress on your life after already giving you a big blow to your gut with his actions.
Always here to talk,
Kevin