Hugging and argueing

My sister and I had a few very harsh fights before I went to my dad's, we actually started saying 'I hate you' to each other, I've never faught with anyone so passionatley. I should be the nice grown up but in some way that would cause me to be more sterile detatched from her. I love her so for some reason that unleashes to animalistic sibling drive in me, I never had a violent sibling relationship growing up. I feel like all of my friends who didn't grow up only children have that agression to fall back on in extreme circumstances. The thing is, we had a huge, horrible arguement and stella said she hated me because I was horrible and then we just stood apart for a few seconds and I asked her if she wanted a cuddle, then we both said sorry. We've started doing that regularly after arguing, having a cuddle and saying sorry, it's definatley a much healthier thing to do I think.
I'm learning more about how uncharted, improvised and tempestuous love is from my sister than I have any other person in the whole world. It's an insane love, I'm not sure how sisters of very different ages should act around each other, or what sort of relationship they are supposed to have. I suppose for that reason we are just acting as though we are both children, I find that I am put in that category when we are together. The adults go in the kitchen to drink coffee whilst I get dragged off by my sister to play.
I feel terrible for her, she's so young and everyone is ganging up on her because she is loud and naughty. I know that she's bored, because she has nobody to play with exept when she's at school. I can't remember whether I was bored as a child, I suppose I don't really have a personality which requires constant attention and companionship, so I was better suited to being an only child for so long. My sister craves attention, constantly, she gets violently jelous of any that is diverted away from her for a second. I hate it when other people talk about her, or say that she's bad, it feels like I'm being hurt too.
It's wierd because I can say all manner of horrible things to my sister but I feel fiercely protective of her when others critique her.
I want her to stop having a hard time and for her life to get easier and more bearable, I want her to turn into a lovely, happy person. Sometimes I feel upset or worried that she won't turn out ok, like my life depends on her being happy and it wouldn' be worth it if she wasn't.
Anyway thats enough family stuff for now.
I've been buying some amazing clothes in the january sales, I just hope I have enough left in my bank account to pay for my student accomodation next year, whoops!
Sleep tight my devotchkas
xxx