hi short_n_swt and welcome.
It sounds like he doesn't truly understand the seriousness. However, what do you know about his childhood? Was he surrounded with parents/siblings who might've reacted in much the same ways to situations and he learned at a young age to respond the way that he is?
The reason I thought about this is because my younger brother told me that he's that way with women and it's hurt relationships... He's labelled all women because of our mother...wrong, i know...
I'm NOT saying he has you labelled. I am suggesting that he might be working with an automatic response that he might not be too aware of himself?
Just a thought...
I wish you well, and again...welcome
kd