My girlfriend and I have been doing contact sports together. I'm feeling guilty about it, what should I do?

My girlfriend and I have been doing contact sports together. Im feeling guilty about it, what should I do?
My girlfriend and I have been doing contact sport (martial arts) together for some time. We're not professional or anything but consider ourselves experienced. We were preparing for a tournament together and trying to really push each other, and both ended up getting injured. I ended up with a fracture and she with a dislocation. Pretty silly on our part really.

The thing is, from a relationship perspective it has made things a little weird because in some ways it was a bit like we were in a physical altercation, even though we technically weren't if that makes sense. To make matters worse when we visited my girlfriend's parents over the weekend and they saw her shoulder brace and found out what happened, their treatment of me made me feel like I was some abusive boyfriend who wasn't taking care of her. I understand that that's their little girl but surely we're not the only couple who do contact sports together, I personally don't have any friends who do, but still. I don't know if her friends think of me that way too, I hope not.

What should I do in this situation? It's making me feel really guilty the more I think about the whole thing.
My girlfriend and I have been doing contact sports together. I'm feeling guilty about it, what should I do?
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