It's been my experience that you almost need a couple of things like this to happen before youre really capable of coping. I look back on all the crazy girls I dated. I was so heartbroken at the time, but in hind site it's easy to see now how messed up they were, and how lucky I am that I'm no longer attached. Imagine if you made it to say, 25, without ever having to deal with mind games, or messed up relationships. You'd have no point of reference on how to react or move on. Cherish these moments. They will raise your ability to cope, as well as your standards. I'm depressed constantly. The upside is, that after a while the things that normally depress you tend to get old, often for lack of a better alternatives, or out of sheer bordem. You at least, on a "mind expanding" level, tend to naturally get out and try new things.