I(30M) am feeling like a hostage with my girlfriend(27F). She is threatening me. What to do?

I don't know where to start.

We've been together for about 2 months, but the relationship has only really felt like 1. There are certain things about her I'm not comfortable with, so I decided to end it. Every time I tell her it isn't working for me, she says fights are normal and we can't break up. She also threatens to hurt herself if I leave. This isn't normal to me. I've never had fights like this with anyone.

She constantly accuses me of talking to other people or planning to cheat, based purely on her own assumptions.

When I was living in her city, I blocked her. She showed up at my place uninvited and refused to leave even after I asked her multiple times.

Now I'm at my hometown village. If I avoid her calls or messages, she threatens to come to my village and tell everyone about our relationship unless I answer her questions. She has already contacted a few people from my village.

I feel like a hostage. She is doing this deliberately, and every time I try to leave, she says she'll hurt herself.

What to do?