More Optimistic

So I'm trying to be more optimistic these days. Sometimes it works, and sometimes it doesn't. The main problem is that my ex is dating someone new, and we have to work together. Its not that I want him back, at least not now. But some part of me kind of always thought that one day when we were older that maybe one day we'd be on again. But its looking like maybe not. So that upset me a little, but really it was the fact that it took him over a month to tell me and that i had to force it out of him. This following so closely on our pact that if we were going to be friends again, and work together again, we'd be completely honest with each other. Apparently he's unable to this for me, hence the reason that at this point in time I do not want to attempt another relationship with him. However, he was the last of my close friends who was single, and when your friends are in a relationship well you loose a little of them. And really how selfish is it of me to be mad at my friends for being happy? So I'm gonna try to be happy for him. But at the same time I'm a little sad for me.