If she decides that you’re not in the running, she should just tell you that she doesn’t feel a spark, no regrets, you’re cool, but she’ll take a pass. A mature woman doesn’t torture you just to make you squirm.
Should this kind of thing be considered a deal-breaker? Hi Not The Only One, I’m sorry you like this girl, because it sounds like it's causing you no small amount of suffering.
She should have something more to talk about than how much people want to be with her.
This might be a sign that she’s the kind of person who becomes sullen when they’re not given wonderful compliments 20 times a day, or when they receive the faintest implication that they’re not everyone’s favorite.
If you participate in the act of trying to date other human beings, that's perforce the case.
But any sane person doesn’t constantly remind you of that fact, to try and trip you up.