Better to somehow get the anger taken care of then put a lid on it. I still have my moments of anger - I don't let my ex-b see that, but I did tell him that sometimes I still feel angry. He said he understood that. I don't let it eat at me, but I give it a few minutes (in my head) - allowing myself to beat up the ex-OW, or dreaming about what I COULD have done...like telling her that we were still ML, etc. I am glad I didn't - ex-b and I would likely not be where we are now if I had. But that doesn't mean I can't enjoy the thoughts occasionally. I think it's better for me to allow the anger a few real minutes...as opposed to holding it in.