It’s very kind of you to visit her at the hospital and help her in other ways but honestly it’s very puzzling to me why did you do all that for someone you barely know?

Pay her bills? And she didn’t even ask for it?

When you visited her in the hospital it was literally the first time you met her? Pushing and lifting wheel chair, helping with money, driving her around etc That’s something you do for family or trusted friend or you could do those things for strangers as a volunteer but then you don’t expect anything back!

We (and you) have no ways to know why people do what they do. No ways to know why she said this or that. I’d focus on why you do this or that. I think it’s dangerous to get that fast and that extremely close to strangers. It’s a sure way to get scammed or worse. You can’t expect close friendships with people you barely know