Learn to forgive my ex

So here I am, a new year and trying to mend my broken heart. I want to scream and yell and seek revenge for how I was used, but the best thing is to forgive and move on. So my story goes as this. I met a guy who clicked so well with me. I thought, now this must be love. I was so happy. He did everything that would make me fall deep in love. He ended up manipulating me and I ended up having sex with him. It wouldn’t have been so bad if we had ended up being together forever, but this guy was the kind of guy that uses girls. He broke up with me through an e-mail and blocked and deleted me from Facebook a week ago. I came home on Monday December 29th to the shock of finding I’ve been publicly rejected on Facebook. I was devastated. I finally checked my e-mail and I got the news. He didn’t even call me in person to tell me. What is worst is that it didn’t make sense because he asked me to spend Christmas with him and then he spent boxing day with me. But on Monday he was having a bad day and when I called him, he became upset. Part of me wants to rip him apart, but another part knows it’s not mine to avenge. He has bi-polar 2 so I know his life is already cursed, and what goes around, comes around, so the best thing I can do is forgive him. Not for his sake, but for my own. I need to get rid of this anger.