Your Partner And Your Sibling With Borderline Personality Disorder
She may use him to her advantage
It’s hard to get your partner up to speed fast enough on the rules. Rules like, don’t lend my sibling with BPD tons of money, or don’t let her drink too much alcohol. There are things that you know end badly for her, but your partner doesn’t know that. And your sibling with BPD may use that to her advantage, and go to him for certain things.