Why would a girl try to flirt with me after her dog practically shattered my leg?

So I was at my apartment complex’s dog park and this girl brought her golden retriever in to play with my husky and she was being flirty when I was talking about my dog. Anyways her dog weighs close to 100 pounds or more and it ran full speed into my leg to the point where I was in legit pain for a good five minutes but anyways as I’m leaving I say bye to be polite and she goes bye hope your knee feels better

Why would a girl try to flirt with me after her dog practically shattered my leg?
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