“jaga”, when you went into the relationship you knew the kid was an emotional wreck, but you got involved with him anyway. The second you spoke to him and immediately felt depressed, that should have been a warning sign and you should have ran the other way. It seems to me you were desperate for love to the point you wanted to get it from anyone, including an obsessive, miserable Mikey. You need to stop worrying about “why” he did what he did to you and worry more about “why” you allowed yourself to be taken through emotional rides by this boy. No man is better than the wrong man: learn to love yourself enough so that you won’t settle for bottom of the barrel little boys, and instead spend your time with good, strong men who are actually worthy of what you have to offer. Make them earn your attention and kindness. If he didn’t do it to you he would’ve done it to someone else. His instabilities are not your problem and yet you made them yours. You got off on a good start by cutting him off from your life, now stop dwelling on what he did, learn to love yourself and not let it happen again, as in, don’t give people the chance to treat you like shit, and move on with your life from here on out. You’re better than that.
Answer: Move on. Good luck.