Please read :) Clingy friend?

Hi! I'm a sophomore and at the end of last year, a new student came into our grade. She follows me and my best friends so much but barely talks. When she does, she simply agrees with everything we say. She seems to be sort of observing our every move too. For example, if one of us is still doing some school work at their desk, she'll just stand there, picking at her hands. She doesn't really talk to people other than me and my best friends, especially not guys; probably because we are the nicest girls in our grade. Sadly, we just don't click with her.

What bothers me most though is that everyone else tends to ignore her, further deepening the idea that my best friends and I are the only people she can hang out with.

I guess some people also don't like her because she is just not attractive. Her hair is not very pretty, she does not wear makeup or do her eyebrows, she dresses like a boy. I personally don't judge her by this, but her boring personality repels everybody. Idk. I feel like I'm the only person who ever talks to her. She never talks to boys, which I don't care about, and she doesn't smell too good either. Even my best guy friends, who are super accepting, genuine, chill, funny and awesome, can't stand her.

She obviously doesn't have problems with her self esteem; I think she's complained about her hair or something once, but my best friend, who's gone through depression and stuff, agrees with me.

Another (rather egoistic) problem is that it is now harder for me to talk to my crush and his friends, because whenever I approach them, wanting to talk to him, she follows me, and that makes them want to stay away. They do not like her.

My school is also freaking tiny. There is literally no one I can introduce her to.

So, she is starting to see me and my two closest friends as her best friends, but we just don't enjoy her company that much. It would be a nightmare if everyone else on the outside just saw us four as best friends..! I think that's already kinda happening though because I think part of why nobody talks to her is because they think she's "taken care of" - by US.

I want to find a gooood solution. For now, I'm trying to be as friendly as I can, as I'm not comfortable with showing someone that they're not exactly my favorite person to be with.

THANK YOU SO MUCH! For reading! :)