Feeling anger is critical if you are going to become stronger. I'd be more worried if you weren't angry. Worried that you repressed your feelings and that they would surface later, either in this R or another.
Most people I know deal with it by finding an outlet, typically something physical - running, karate, boxing. Another way is to write down all your angriest feelings to your H and then burn it to symbolically release yourself from the anger.
Me-38 W-38; T-15 M-12; S10 and S6 BD - July 2016; EA confirmed; confronted Aug 2015 EA dissolved 12/2016
Never make someone a priority when all you are to them is an option - Maya Angelou