* sorry for typo in the title. I meant why * I have BPD. When my husband does something to offend or upset me, it makes me so angry that I feel like ending the relationship or kicking him out of the house. And at the time that I'm feeling this anger, its so intense, it feels like it will never go away. I feel like a defused bomb about to explode. Sometimes I just scream out curse words and can't stop. But then he apologizes and it goes away 2 seconds later just like that. Its so confusing because I never know if I should act on my anger or if ill regret it soon after. I know its called idealization/devaluation or black and white thinking. But what I'm asking is why does it happen? What goes on in the BP's brain to make them feel that way? And how can I fix it?