So about 2 yrs ago my now ex (than BF) cheated on me with this skanky girl in another city. They saw each other for about 2 weeks, she even left her BF at the time for him. But then he says he called it off with her because he realised that she was not me & that he wanted to be with me because I was special. He never told me about it, I only found out about it after I changed cities to come and be with him. Anyway, it took me a long time to get over that, but he did a really good job of convincing me that she was a huge mistake, that she was really dumb (which she is), etc etc... I used to check his phone & browser history etc, and he never once tried to contact her again.

I broke up with him about 3 months ago. He turned out to be a real douche bag (he used to get very aggressive with me, lie a lot, etc etc). Anyway, then I went out the one night and saw the two of them together. This was very unexpected as I knew she was in a serious relationship. So once again she dumped her BF for him (she obviously likes him a lot). Now they are actually in a fully fledged relationship! They made it official on Facebook a few days ago... Which I find strange because just less than 2 months ago he was still messaging me, telling me how he could never love another girl, how he wanted me back etc.

I have completely blocked him out of my life - he's blocked on FB and on everything else I could, because things with us ended on very bad terms. But we have many mutual friends (which is how I found out).

So do you guys think he did this to try and get to me? To hurt me maybe? Or is he just completely psycho?

i think he's trying to make you jealous, but honestly, he sounds like a huge douchebag. be the stronger one and show him who's boss haha.