Stand your ground and stay in the house. From what i have read you are in similar situation to me. My wife left one year ago with my three girls. All 4 were hostile to me. My wife had taken them in as her confidant and had turned to them against me. The best advice I got was to keep trying with them and they will come back to you. It has taken a year, but that was the best advice I got. I have revived my relationship with my three daughters.
Right now I live in the house and all four of them are crammed into a small apartment. I have seen things between my wife and the girls get hostile now and I can just sit back and tell her I won't interfere with her relationship with the girls.
Things will get better, but they may have to hit bottom first. In my case I am now setting stronger boundaries with my wife since I have my girls back. I am making her pay her share of their expenses and she is starting to squirm.
Best of luck and hang in there.
Twisting on Life's Rope Me53 W53 M20 D21 D19 D16 BD 2-2013 D final 1-2015 _________________________ "Dream about tomorrow, Live for today, Learn from yesterday"