She broke up with me about 5 weeks ago. I'm living at uni and wasn't giving her much attention to be honest, but she left me for another guy, which still pisses me off. Also found out that she slept with a guy about half a year ago when we had a break, and lied to me about it the whole time because she was 'scared I wouldn't get back with her'. She only admitted that she did this after I told her that I had slept with another girl a couple of weeks after she broke up with me.

She's contacted me since then and asked if there's any chance of us getting back together, if I am still attracted to her, but I have shut her down and blocked her on everything now.

Problem is, I'm still pissed and think about her regularly. Not in a loving, I miss you sort of way, but a hateful, you're a fucking bitch kind of way. I keep having fantasies of her contacting me in the future, where she sees how successful I am and I get to tell her that she fucked up by leaving me, and she has no chance with me. I don't know, it must be an ego thing.

Combined with this, I have been reading TRP since the breakup and noticing real life situations that confirm it as the truth. For example, a girl one of my friends is talking to has basically said that she is going to leave her boyfriend because 'things aren't going well between them'. Hmm, that wouldn't have anything to do with the fact that my friend is better looking and has better social proof than him?

Suffice to say, I am in the anger phase right now. I am however benefiting from this in some ways; I am pushing myself harder in the gym, following a routine, have found new motivation for studying, and have started thinking about my future more, planning self improvement and really looking at what my goals are. There's just this dirty underlying anger and stress that hits me especially at night time. My sleep pattern is pretty fucked, need to sort it out.

Should I be taking steps to get over this anger quickly, or should I just ride it out and keep pushing myself?