Short question - when is anger a sin?
Longer explanation: I’ve been dealing with an ongoing situation in my life, where the same person keeps treating me poorly, despite the fact that I have tried to speak frankly about how their actions are making me feel and what I expect in the relationship on a number of occasions. I find myself frustrated quite a lot, and feeling a little bit powerless, and sometimes I think I’m verging into anger - both at this person because they keep repeating this action and at me for not being able to do anything.
At the end of the day, though, these feelings don’t go anywhere. I get frustrated, disappointed, maybe even a little bit angry; I breathe through it, hope for better, and go on with my day. But is just getting angry itself a sin?