So as the title says, my girlfriend has severe borderline personality disorder and has been through a lot of trauma in her past. I love her a lot and most of the time our relationship is great. However she goes through phases where she completely shuts off and turns cold, distant and says really shitty, hurtful things to me. I try not to take the things she says personally and I’m trying my best to be sympathetic and patient but it gets frustrating when her whole personality just changes overnight. I know it’s not her fault but I also struggle to deal with it sometimes. I’m trying to do my research and better understand her condition but I thought asking other people who actually experience this might help. Any advice is appreciated. Thanks guys.