If I were in your shoes I would leave, if I didn't have my business I would not live close enough to XW to let her manipulate me. Moving doesn't mean that you can't come back, nor an end to seeing your other DDs, but a change is needed for your well being. It is my opinion only, but when you are not in contact with Andy your emotional well being is much better. I think you need some time to build up your confidence and rid yourself of the depression.
I am relieved that I don't live with XW anymore, now she only plays with my emotions a few times a week. My goal for 2006 is gain the upperhand, ei not let any of her drama get to me (be it money, health, OMs etc), I am going on a mission to get my pride back. Jo, I have no idea if more distance between our Xes will help, but I have been going through her drama for yrs now and so have you with your X, so what could a change hurt?
This is just my opinion, by no means am I saying its the only way. I just know I can't to the act "act as if" anymore with her, so I understand how hard it is not to get mad at them.
I looked at the banks statement from what was the joint acct., she withdrew $3350 in the last 30 days, paid her cell phone for $75 to stay in contact with OM1, OM3 and one car payment for $150. NO OTHER BILLS WERE PAID, I can't live there help and "act as if", where did the rest of her money go? Over $3k blown on gambling and OM? who knows but change is needed for me also.