I used to be very close with this big group of friends. It's like a clique thing. However recently this girl, G, came in and kept sticking to us. It's fine with me since she is my classmate as well. However I feel that she is trying to join the clique as well like she use many methods to attract attention, and she follows us where ever we go like she's a part of the clique. Later on I realise that all her close friends are in another grade and so she don't have any close friends in class. From what I see, I personally think that she is boot licking us to be friends with us. However I thought that maybe I was too sensitive and stuff. But suddenly one day, my friend, WT, also in the clique, told me that she felt the same way as I do (I didn't told her how I felt initially). After that I begin to take note of G's actions and begun to hate her.
My groups of friends (excluding WT) found out that I hate her and now they all hates me. I do not know why. I tried to explain that I dislike her is because I find her a hypocrite and that is only from my point of view. But it was useless. Majority of my other classmates begun ignoring me as well.
Now I no longer hang out with them. They have class outings and everything but they do not invite me and my friend said that it's because G is present so I cannot go.
What should I do? I do not want to force myself to like G... I feel really upset because me and my big group of friends used to be so closed. Just in one night, one of them, B, started scolding me, telling me how fake and stupid I am because of G. We used to be close friends... and now it's like that.
One my other friend, JM, told me that I was wrong to hate G. Only WT supports me now, the rest hates me.

Well, your problem begins obviously from when people found out you disliked her, for a kinda lame reason. It seems that if your little clique got mad at you, then obviously they were okay with her except for you and WT..
Can you not just.. get over that kind of stuff? You were hating on somebody, and you get hated on.. In a way it's like karma, haha.. Err maybe you should just try to change the way you're thinking and start fresh. Show them you're okay and make up. You don't have to be butt buddies but just mutual with her.
what is a clique?
why can't she join your clique?
A group of friends, like a gang, kind of.
They can't join because school kids are dumb and not as open minded as adults.