How long do you think this is likely to be, in reality?
She's stuck at the moment because if/when she splits up with her P, he wouldn't let her stay in the house. In fact, she is afraid to. He also refuses to leave. So she ends up making up with him again every time she makes a break for it because she has nowhere to go and she's too afraid to live in the house with him while he's angry with her.
I've told her the options when she leaves are to present at council as homeless, and hopefully get housed in a B+B, or to contact women's aid/local DV organisation and get housed in a refuge, but even though both options are temporary she's too scared. I guess she'll get to a point eventually where she'd go through anything to get a safe place of her own but she's not there yet.
I've told her she's welcome here for as long as she needs to stay but realistically how long is this likely to be? I don't think I'd mind having her here but it would be very cramped.