Hey ya'll,

I am fairly certain my GF has BPD. She has very intense mood swings; one moment she can be super happy, and the next suicidal and cutting. She gets very angry at me sometimes, and verbally attacks me, just hours after telling me I'm the love of her life. She's tried therapy but quit after a couple weeks, and has recently started it back up. She's my best friend and when things are good, they're amazing. But when things are hard, it feels like my world is crumbling. I want to stick by her side and help her get help, because she is honestly the most beautiful person I have ever met, inside and out, and she deserves to feel happy. 

My question is, how do I approach her about this topic without triggering her, and helping her keep an open mind about getting diagnosed/treated? Also does anyone have any suggestions about treatments and therapy techniques that are effective?