Well, shit.

[Venin]

...hmm...interesting...alright, let me tie up a few loose ends here, first off, does your sis even bother to tell you why she can't stand you? If its because of the constant arguments, you could tell her that you've gotten over them before, so why is this different? Second off, did your parents agree to this? If I'm reading this right, wouldn't that put more financial stress on them? And third off, if she really can't stand you and you don't want to leave, be nice. Ask how you could make living together better for her. It's what I do. People are angry at me, I be nice, because negativity gets you nowhere. Say you've done most of the housework whilst living together. Be positive. She will like you for considering her feelings and maybe will "tolerate" you a lot more. Now, it doesn't mean all your troubles are over, you'll still argue from time to time, but you'll get over it, like me. I've made several errors, most are here, but I get over, learn from my mistakes, so long story short, be positive, talk to her, see how you can fix this conflict without putting financial stress on your folks. You would've considered her feelings as well as your parents'. I'm no philosopher, but I learn from experience. (or I could just as well be speaking nonsense, but hey, I think it's a good start at least)