So my girlfriend has BPD.

I’m not the type to come online. But I feel like I’m gonna commit suicide due to how stressed my gf is making me (ex now). We have been dating for 9 months now. And the first 3 months felt like Cinderella story…. The next 6 months? Became CONSTANT break ups. She gets upset and IMMEDIATELY proceeds to “hey move on wishing you the best “ blocks me on all social media and removes our pictures offline. The first time she did it she came back and apologized through a LONG email. I forgave and moved on. After that? It was ME who kept chasing and bringing HER back! She has done this 7 times to date now! 7 times!!! The 5th time she did it she expressed how she doesn’t mean to! And it physically makes her Ill when we are not talking or separated but yet she does it anyways! Also? During the 9 Months of us dating I decided to engage her about 2 Months ago and we were gonna get married officially January new year. But even when she gets emotional or upset… or if we communicate she feels I’m attacking her(which I am just communicating ) she takes it as attacks and just breaks up . I have been trying my hardest to hold us together . And she is not seeing this atleast I don’t feel she is. I don’t know what to do. I am depressed now. We broke up AGAIN a week ago . We usually break up for 3 days and I go to her house and get her to talk to me and we hug for hours and make up… then the cycle repeats ,, idk what to do.. this time we broke up I haven’t reached out like I normally do… idk if this is making it worse or better… but I think I wanna move on.. she keeps hurting me.