I believe I'm passive aggressive which was probably why I didn't blow up when I found out my W was having an affair. I know I still have it in me, but I don't outwardly express it to her. I don't know how.
I'm currently using my aggression/anger in the gym. It give a certain amount of 'drive' when I work out and I do notice that I'm not so intense/lazier when I'm calmer. The anger also allows me to detach from her. It kicks my butt and stops me from feeling sorry for myself.