Help

I (30M) met this girl (29F), and things got serious quickly. She was open about having anxiety and BPD, and I thought I could handle it. I really liked her, so I proposed. We weren’t fully intimate as she wanted more time, but we engaged in foreplay. Soon after, work got hectic, and I couldn’t text her. She started sending me constant messages, some are emotional, some abusive. I tried explaining, but she kept escalating, and I eventually told her that if she didn’t stop, I’d go to the police. Now I feel stuck. If she files a complaint, can I use the messages she sent to defend myself? I don’t want to escalate things, but I also don’t want to be falsely accused.