I'm always being told by my girlfriend with bpd that her life would've been better if I hadn't been born

I'm always blamed and it just hurts. Everything is my fault all the time no matter what. She said it's because there's nothing good about me and I have zero qualities. It hurts to hear this every time. I'm doing everything I can to make her happy, I pay for expensive trips all by myself, I'm always there for her no matter the hour but nothing I do is enough, she doesn't appreciate anything I do, I'm always compared to others