Why is my sister such a jealous bitch?

Anonymous
She does things to deliberately irritate me.

like when I’m in a room she’ll turn the lights off before going. Or she’ll try to flirt with some random guy on front of me to show me she’s better and can captivate his agtention

in fact I have never met someone in my whole life who is hell bent on proving me to me she is better

kf she thinks she’s better then why the need to put me down?
Why is my sister such a jealous bitch?
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