seriously i have the feelings that i'm getting to hate her/he...

i really dont know what has gone into her/him...she/he really changed!!!and is too much!!!at first i thought that i still can accept her/he as a normal friend not best friend anymore...but now i really dont want that to happen...she/he likes...snatching everything from me...and she/he enjoys doing that...seriously i cant believe it... i know that she/he is smart but come on....she/he dont have to show off in front of everyone like you are the best or no.1...if she/he really is,why cant she/he just go to the first class??even though that she/he is smart,but please next time if other people didnt call her/him to help to do work,please dont busybody like you know everything!!!i really hate this kind of people!!!last time.she/he is not like that...she/he is way better than this time...but now she/he changed terribly...and the worst thing is she/he makes friends with those friends which is quite famous in the class!!!!and those what were our friends like xxx,xxx,xxx and others....she/he seldom talks to them or should i say doesnt talks to them!!!!!what's the point if i have this kind of friend????because of her/him,i always cry in my room...i really felt dissapointed for what she/he has done....i'm currently in a bad mood...sorry if sometimes i said rude things to you guys....i just hope you guys can forgive me...