Does he really want me back/love me or is he just playing games?

Friends are people who you can trust, who will always tell you the truth, who are loyal, and who support you. Is he trustworthy? Is he honest? Is he loyal and supportive? This guy is not your friend. Friends don't treat each other the way he treated you. Most good relationships are based on friendship. He has you as his backup. Now he's single, he misses you. Someone who cheats on you 7 months into a relationship (that you know of - meaning there's probably a lot you don't know) is not someone worthy enough to call your friend, let alone even CONSIDER giving another chance to. I know people who are bipolar, they go from super happy to super depressed - not psycho and yelling at people. Nobody wants to be around him because they've had enough of his idiotic behaviour. This guy embodies everything that most women would run the hell away from. Bottom line - you cannot trust someone like him. He's sorry because he left the girl that loved him? What's in that for you? He's selfish and thinking me, me, me. My ex cheated on me and when I found out, it was over. No second chances. I would not allow myself to be his doormat, I have too much respect for myself. You should do the same. Run fast away from this guy because he will cause you a world of pain.