It depends what they are talking about, I think at the moment I'm more triggered by people talking about past abuse but it depends what I'm feeling vulnerable about as to what triggers me.
Sometimes I find it helpful to educate myself about borderline and knowing I'm not alone in how I feel. Sometimes I need to stay away from all things related to it and just completely distract myself.
It sounds like you could do with some distraction at the moment so if you enjoy documentaries by all means watch them but something unrelated but interesting like wildlife or history.

Sent from my iPhone using Tapatalk