I'm going to hit my girlfriend and break up with her because she said I raped her
Did you do what she said you did?
I don't think that I raped her, I don't know what she's talking about.
There is never a reason to be violent with someone, be it physically, mentally or sexually. It sounds like the two of you have some important things to talk about and a therapist may help ease the conversation.
She's crazy and I'm not going to talk about it with her. I just have to find a way to make her go away.
If you are not happy with your girlfriend you guys should split . There is no justification to use any kind of violence.