Girl tells me that she flirting with me but I’m confused?

So this girl I used to date told me that she was flirting with me but I’m confused because she asked me if I still had my girlfriend and she still had my number blocked… the she told me that she didn’t have a boyfriend. Also she told me that she stopped because she didn’t want the same thing to happen again… why would she ask me if I had a girlfriend and tell me she didn’t have a boyfriend.

Girl tells me that she flirting with me but I’m confused?
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