I think I broke my girlfriend's hand! help?

So we were play wrestling and I got too involved into it and performed a attitude adjustment (a john cena finisher) She fell awkwardly on her arm and was squealing in pain. I applied ice packs on her arm and I could feel her arm was swollen. well she went home afterwards and now texted me saying she fears her arm is broken! well her parents know she was out with me the day her arm supposedly broke so I'm scared what they'll think. I mean I ride a motorbike and they might think I and her had an accident, or considering the stupid actual reason of us wrestling, it'd Make me seem both like an idiot and an asshole. It would seriously hurt our relationship because her parents would think I'm immature when in reality I was only goofing around. I'm taking her to the doctor tomorrow and need an alibi to tell her parents. What should I tell em
I think I broke my girlfriend's hand! help?
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