I'm very upset because i learn that two of my 老友记 (before 2 years)with the other girls of my class(exept 1 of them)were gathering in one place and say bad words about me:-(...Bit 2 of theme are my friends....What i must do now??

Well, first I think they we just jealous because a boy liked 你 and not them, which is typical. Second, 你 have to talk to them face to face and ask why? 你 thought they were your 老友记 and how could they talk behind your back. Tell them how would they feel if they were in your shoes. Experience is what separates the situation, if they knew how 你 felt, things would be different. For me, the best way is to aproach them maria, but not disrespectful way, otherwise they'll keep talking trash. aproach them in a calm matter and ask for an explination, after all, 你 deserve one. I hope I've helped 你 sweetie! Take care and be strong!

你 sould say they are hurting you. even know i would 冲床 em in the face and kick there asses

These type of things are daily in the "dear friendship."
If those were your friends,they wouldn't say bad things about you;they would have protected 你 and sayed to the other girls"shut up!don't say rude things about maria!She is our friend!".If they really would have been your BFs.
They are just jealous because the boy liked 你 and not them,which means they start hating 你 about that.It is typical this problem.
你 shouldn't be with those kind of friends,you should leave them.If they are mean to you,why 你 should be 老友记 with them?You don't have to care about those b*tches anymore.You have to ignore them...
...Welcome to the 婊子, 子 world!
你 have to be strong,take 心 and go 前锋, 期待 with yourself.
你 can't let those poor(in the Bad way) immature fools to take 你 down.
There are so much 更多 peoples that would 爱情 to have such a friend and will protect 你 always!Like me,for example.
This happens to me too,but without a reason for boy 或者 soemthing.They just hate me without reason.And they do gossip and other offensive things.WITHOUT ANY REASON!I'm just friendly,helpful to them and they keep saying for me rude things!
But anyway,we are talking about your problem now.
As I said,You should care about yourself,your school mood and all your favourite things.
No one can mess with Maria!

I hope I helped you.:-)
P.S:Not all the peoples have a dark and bad heart!But 你 just have to keep looking for some wonderful friends!

Did 你 try talking to them about it? I think thats the first step, people speed roumors to break up friendships like that.