I recently got diagnosed this month, so I apologize if the flair is wrong. I'm very new to learning more about my disorder and the community itself.

My last ex was awful. We fought a lot. She gaslit me and called me crazy and made me feel like a legitimately awful human being. She even took most, if not all of my friends after the breakup. But for some reason, I never wanted to leave. In fact, I idolized my ex so much that the breakup sent me to the mental hospital.

Recently, I've been blessed enough to be in a relationship with another girl. We've only really had one conflict so far, but we healthily sorted it out and communicated with eachother. She's always there for me whenever I'm sad or anxious. She's incredibly understanding and wants to learn more about my disorder. But for some reason my brain wants me to leave. It tells me the relationship will fail. That I'll never be good enough for her. That I don't deserve her. I don't feel as if I'm unhealthily attached to her. 

Does anyone know how to cope with these thoughts, or does anyone experience something similar with healthy relationships?