<human>: 21f/23m Met online, hit it off really well (much better than I ever expected)  He said he was looking for a relationship, recently admitted that he was only looking for sex at first but then he cares about me now, and we've been together for four months.

As time as gone on I've realised how badly he was hurt by his Ex (they had 2 year seriously deep relationship) She broke it off with him, but they still chit chat, and occasionally see each other, it's a bit too much for my liking, but I'll put up with it because I trust him.

This guy is amazing. The only thing reason I think I would ever break up with him would be over his inability to move on completely from his ex (if it ends up that he isn't capable of it)

* I don't want to force him to do anything he doesn't want to as far as cutting contact with her - that's not fair because he needs to work through it and there's not reason they couldn't be friends.

* He recently told her he was seeing someone, and now I'm worried she going to turn on the heat because it's one of those, now that she can't have him, she wants him, sort of situations?

* How do I deal with this as "the new girl" in his life? I'm sometimes on the receiving end of some emotional stuff that ended up really hurting me, and I don't think he realises it, but I'm willing to give this a fighting chance - He's that quality of a guy.  ( Some stuff I don't like - A Bday card she sent him on the mantle, a book she gave him on the end piece, her picture under his old uni work at his desk)

We've agreed to take our relationship slow, and I honestly believe in his honesty but it just scares me. I need some mature wisdom on how to deal with this?

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<bot>: BF has a lingering EX in the picture, I didn't know about at first, hurting me a bit, buy BF is worth fighting for, how do I deal?