It's not attention seeking at all, it's the opposite. When you shout and storm off, all I can think is: what did I do wrong? How much do they hate me? So I feel it is absolutely necessary to apologise
It is very common in neurodivergent people (autism, ADHD) to be very self aware like this, doubtful of themselves
At work, training involves objectivity and accountability: if we do something wrong, we have to own up to it and say "My bad", blaming others is not tolerated at all
I have low self esteem because of rejection, either socially or romantically, this means I put myself down a lot
I have severe anxiety and it is not under control. I have seen CBT, I've seen a therapist, and my symptoms are getting worse
A normal person would not react by shouting, storming off and using the silent treatment. A normal person would say: Hey, I'm sorry for being a jerk yesterday