Girls, my girlfriend kneed me in the nuts!

We we dancing at a club and while dancing I put my hands on her ass. We've been dating for a year now, but the issue was she said, "you shouldn't be doing that to me in public." Anyway she kneed me in the nuts and I fell down on the floor, moaning and grabbing my crotch, turning red. My balls swelled up the next day, so she took me to the doctors and I have a bandage around them now because they're purple and blue.

Isn't this abuse? Should I leave my girlfriend? Or should I just accept this from her and move on?
Girls, my girlfriend kneed me in the nuts!
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