Is this splitting? I don't know what to do and need advice
so, for context, me (20) and my (now ex) gf (19) have been on a rocky relationship since 2023. We actually dated back then for a while, but she was so impulsive and emotionally unstable back then, and I was a dumb, alcoholic junkie teenager who didnt know what to do and feared I would make her worse so I broke up with her. Even though I had broken up with her, I thought of her everyday and didn't want to have any other relationship, I really tried to get better, got into a nice university and got a nice job, that way I could be better in a way i could deal with her stuff. We tried dating again once in 2024 but it still was too much for me, didn't talk for a while until last year I was feeling like something bad was about to happen, went to sleep then woke up with her calling me all bloodied up because her bf had hit her. I went to the police station to get her, brought her home and she slept in my house that day. I was respecting her space, but after we lay down together I felt this rush of emotion and decided then and there that I would never leave her again. She actually didnt break up with her abuser bf till january and we didnt talk until then, but after that I've made my life's effort to be with her. It took a while of convincing her that I could be good for her, but after two months she said she wanted to date me.
The problem is, ever since then there are times she seems to get crazy over nothing and try her hardest to drive me away. Usually it was regarding my ex- I dated a girl from 2019 to 2022 (they were friends for a while, but i wasnt in contact with either of them) and she was certain I just love that ex way more than I love her and that I would go back to her sooner or later. She even went as far as breaking up with me and trying to be friends with that ex of mine for a week so she could get info on how our relationship was and use that as proof that I love that ex more and would never do her good (things went badly, that ex of mine is really just a bad person) and after some days she gave up on that idea and we got back together.
And now, last week, she got mad with me because I talked to a person she didn't want me to talk to. (I literally just greeted them) For context, he didn't do anything to her or whatever, she just didn't want me to talk to him. She started saying she wanted to break up and she would kill herself if I kept talking to him, I said I didn't even say anything to him and she seemed to understand but was still adamant on her not wanting to be with me anymore. Literally a hour before she was saying she loved me and that she would prove to me and everyone else she was with me out of love and because I never left her no matter what. I'm really uncertain of what to do out of this situation, because she doesn't want to see me or do anything with me, she keeps saying she doesn't love me anymore and that she tried to break up but I never let her and kept convincing her to be with me, even though it was her who asked if I still wanted to be with her and got really affectionate with me, this seems like every other situation she tried to use to drive me away but I don't know exactly. Does this seems like splitting? It's been 5 days and still no luck of making amends, I don't know what to do