Thank you Yury & ben for claridy things, as i taught it was a long time querelle about nicole being selfish & using poeple ( estelle used the word leech xD). And the whole kitchen noise was just an excuse ... I think estelle had been pushed at her limit ... ( btw when i read that nicole said 2 friends in a same room doesn't work, i mean come on ... It's now obvious that nicole wanted that room for herself & used estelle to obtain it ! :X )
But as i said no mather who/what started the fight, they are both in fault once they started being violent ... !