Why do girls hate me? (I am a girl)?

[Emma]

Basically other girls seem to hate me and I don't understand why. I am nice and I'm not ugly at all and others would say I'm pretty but I have very little confidence within myself. The other day one of my friends hacked into my Facebook account and deleted loads of my profile photos that had loads of comments and likes which upset me because they were personal photos to me (a few of my friends know my password because I thought I could trust them but I have obviously changed it now). And the other week a couple of girls rung my mum from a withheld number and were telling my mum how much they hate me which obviously upset my mum loads, and I thought to myself no matter how much they may hate me, they shouldn't upset my mum like that what do I do? I get on with boys fine and they seem to like me a lot more than girls do!! It gets to me sooo much, and I don't think the girls realise how they make me feel, any advice??

Thankyou in advance