<human>: Could you distill the essence of the text into 1-3 sentences?

My previous dilemma can be found [here](

After some helpful comments from other Redditors and finding that any attempt that my ex (23M) and I (23F) made to have a conversation would lead to an argument, I'm walking away from the whole thing.  And I'm mostly okay with that, my head is pretty clear.

I stuck to deleting and blocking him from everything, whatever.  After we called a quits on our 5 year relationship last Sunday, he was acting pretty shady (he would tell me that he wanted to work on our relationship but was trying to contact other women).  Yeah it annoyed me; however, this morning one of our mutual friends told me that he's really been really interested in one particular girl (an ex-coworker of his that I thought nothing of at the time) and has been chatting with her quite a bit; has plans to see her (alone) soon.

I guess that's not my business anymore and I told my friend to stop giving me updates on his behavior, but I'm beyond angry at this point.  I knew that he was bullshitting me by telling me he wanted to work on us and wasn't interested in dating anyone, but really?  He's moving that fast?  I'd let him have it, but that would obviously defeat the no contact thing.  So instead, I'm sitting here seething, and wouldn't be surprised if I wake up as the Hulk or something tomorrow.  What can I do to get rid of all this anger?
<bot>: I'm following the NC rule, broke up less than a week ago and my ex is chatting up another girl.  I'm furious and have all this pent up anger, and I can't seem to calm down