Why do some girls socialize with everyone and hate me after encourageing me to continue?

mabie i am overthinking but this one girl i met she would look at me and smile for a longer period of time and now told me she hates me because i looked back at her for to long... then i talk to her and we have a good conversation and she says i make her feel uncomftorble and unsafe did i do something wrong cause both instances seemed like it was fine... :(

Why do some girls socialize with everyone and hate me after encourageing me to continue?
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