We've been dating for over 2 years. I'm very unhappy in the relationship & as time goes on I only dislike him & his attitude & habits more. There hasn't been any progress in the relationship, most of the time he's in a bad mood & treats me badly. I've tried ending things with him & it's hard to get rid of him. He brings up how he left his friends & family for me which is true & I did the same but I had no idea who he really is. We both have left & done a lot for the relationship but I'm not happy in it anymore & I'm almost certain he isn't either. I can tell it's going to be another failed relationship & I don't want another one of those. What should I do? I tried telling him how unhappy I am, I tried communicating with him. Nothing works.