You've already offered a place she can go when she needs to. I really think the only way would be to stop providing money. Right now she's being taken care of and knows she can rely on her family. What I think would be best is to tell her you can't continue to support her financially when it's so much of your income. Mention again she's welcome to stay with your family then quit providing. (Easier to say than do).

My bf (13 years together) is bipolar and had this idea for over a year of getting a large van and converting it into some type of living space like a small RV. I always thought this idea was unconventional and somewhat irrational. I chalked it up to being a bipolar thought but he kept it up so long that I figured I guess that's what he wanted. Finally after over a year he got a van. It's been a few months and he hasn't done anything with it. Might be because it's winter though and hard to work on if it's snowy out. But still, it's gonna take a lot of work which I don't know will ever get done.

I've been the one supporting us for years but not sure how much longer I can do it. I think as long as we provide for them they just take it for granted and don't realize how much of a responsibility it is on us. I think tough love is what has to come into play in order for them to understand. But it's so hard because you don't want to lose contact then wonder how they're doing and that's why we don't want to leave. At some point they're gonna need medical care or a hospital and if we cut ourselves off from them then who will be there to help? It sucks and we can't know what would happen when that time comes. It's a hard situation to be in that's for sure.