If someone knows about your bad health and still flirts is that a good sign?

Why would they wanna flirt with someone who's got a zillion health issues. And why would they be surprised im not showing signs of interest as im confused why they behaving like this? Im pretty sure they must know I've hardly had much experience if at all. You would assume he's not taking advantage as that would be pretty cruel
If someone knows about your bad health and still flirts is that a good sign?
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