Welcome
vasso,

I'm really glad you shared your first post with us. 30 years is a long time. Do you have children together?
How are you feeling about his decision to leave? Yes, it is very sad to see your partner react this way. I am so sorry. A pwBPD brings so much confusion into the lives of those who live with them. My mom was an uBPD so I definitely understand.
Please feel free to share more when you can, and take time to read the other posts too.

Wools