The worst breakup I've ever had was my fault. Some bad shit happened to me and I kinda imploded for a time, taking out everything around me in the process.

The second worst came when I moved in with a girl. We managed to get a house together and were sharing the rent but a month later she suddenly turns around and tells me she's leaving since her rent money was coming from her parents and they said if she didn't dump me they'd cut her off.

We'd been together for two years and in all that time she hadn't told them about me at all, and when they found out they dropped the axe on us. Within a week I found myself single and homeless, but luckily I had some good friends who helped me out until I got back on my feet (one of whom I'm now married to. :D)