My gf just broke up with me and im worried about their mental health

Me and my girlfriend had been dating for about 4 months now, and the night before she broke up with me she sent a message explaining that it would be best if she faced these emotions alone. One of the things shes told me is that she's learned that opening up to someone is equal to blackmail, and i told her i would never do anything like that. She has a long history of abuse, emotional instability, suicidal thoughts, and just being around a-holes. I told her I was going to be there for her no matter what. and I think shes scared of being loved. She was doing fine and I was proud of her, but these last few days have been hard. And im really worried shes going to do something stupidly permanent. I have told her that if she ever needs someone to talk to, or just support that I'm still there for her. I still love her, and she said she still loves me. And im scared.

Im sorry for wasting yalls time, but thank you