I agree with Helm.
It took me many months to completely get over my last "relationship." For a long time, I would still jerk my head around when I saw someone with the same colour jacket as she had (yellow, not common around here). Did I have dreams? Yeah, and a lot of them ended up making me feel shitty for a few days. In the end, though, I realized that it's not worth turning yourself into a wreck over.
You need to think about what it is specifically that's making you angry, and then address that.
In the end, it was the dreams that truly helped me crawl out of the pit that I had dug for myself. I think that dreams are the brain's way of sorting out a lot of different things. I ended up dreaming that I was talking with her, and I said, "I want things that are important to me to be perfect." That said it all. Once I figured that bit out, I was able to realize that expecting something like a relationship to be perfect was only going to make me a depressed loser for the rest of my life.
Now I am free to at least be just a loser, without the moping and ruminating.
