If a girl lures you in and then rejects you repeatedly, what's this about?

Girl flirts a lot and made me like her... then if I show any liking she basically rejects me... does it over and over.

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Guess what? It was 100% for validation/Ego boost!!! Saw her yesterday and she was all bragging to me and I caught her in some lies... how pathetic... and also found out her life's not so great... the pattern did a full circle and it's now obvious has very low self esteem to the point she has to use me for validation. I'm So over her!! She fell off the proverbial pedestal.
If a girl lures you in and then rejects you repeatedly, what's this about?
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