Jealous of a girl

There's that one girl in my school (let's say L), she looks very masculine and everyone in my friend group thought she and her girlfriend were a straight couple. I discovered she was indeed a girl because one of my friends got closer to her since L is a friend of my friend's boyfriend.

I'm so fucking jealous of her, her face looks masculine and she has a flat chest which I especially hate because I feel like it's worst when I wear my binder since it's visible under my shirt and she doesn't have to do anything because her's doesn't show.

I at first wanted to avoid L and her girlfriend (because of everything said above but also because I hate couples) but since my friend is close with them, I don't have much of a choice but to tolerate them. I think I genuinely hate L.