Girl's Behavior

Why does this girl like EVERYONE else’s pictures, except mine?

I am a girl and there is this girl at work and she makes a point to like everyone else’s pictures, except mine. She also comments on others pictures saying ‘cute’ but with me, she makes no effort
I have been told I am better looking than average and have been asked numerous times by people if I am a model
I always support her and like her pics

She is mean to me too at work for no reason. She calls me idiot if I skip up or make a mistake, she always corrects me if I say something. She is always telling me how gorgeous all the other girls are but says nothing nice about me. She even makes a point to laugh at everything I say and humiliate me, especially around others. I have also seen her staring at me and she sometimes says ‘this top might suit you’ and one time I turned round and she had been staring at me for ages but she quickly walked off

What is her issue with me? Why can’t she bring herself to like any of my pictures?
Why does this girl like EVERYONE else’s pictures, except mine?
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