I think it’s normal for people to be mad at each other sometimes even if they’re close friends or family or intimate with each other. Like I think that’s a normal and healthy part of relationships that can happen sometimes

“Why were you on Mad At Me island” because at the time I was mad at you and yet our friendship has weathered that without trouble

You HAVE to let yourself be angry sometimes and you HAVE to understand and accept that people will be angry with you and you HAVE to be able to think about it and talk about it and work through it because it's not a moral failing to be angry.

You cannot have successful relationships by hiding your feelings and running away from potential conflict.