So my ex broke up with me and moved in with her new boyfriend like less than a month after which fucked me up for a while, but now I'm getting over it and started hanging out with other girls. Her(my ex) and I are on pretty okay terms as far as I know. We still have short chats on facebook every once in a while. Anyway, I've been having an amazing month just doing what I want, focusing on the pros of being single. I look and feel better than I have in a while.

Now here's where the strange comes in for me. I posted some new pics of me looking good and the first person to like them was my ex. She'd never liked any of my other shit before. Further more, a girl I've been getting to know posted some pictures. I liked the pictures so I guess it showed up on my wall(my ex is still on my friends) and then all of a sudden I notice that my ex is 'friends' with my new girl. I know for a god damn fact they don't know each other, so why the hell would she add her?

I mean is it just... jealousy? What does it mean?