I was looking for a job for months and months before I even found something, lived off nothing for 3 months. UC wouldn't give me anything for 2 months because they said I earned too much. When they where first rolling it out so had nothing. Until UC started rolling out mainstream.
To be honest OP I would evaluate to see if you can manage on one wage, tell her just to leave on good accord and use the time to give her a break if you can keep her up and stable that's the main priority.
Might be time to evaluate outgoings.
Done this calculation before. It would be no life. Living hand to mouth. Life is crippled enough as it is with her other medical stuff. I think I'd end up giving up myself.
I'm struggling already with gfs medical and mental issues. To have the financial pressure too? I think it'd break me. By that I mean my mental health issues I work hard to keep in check
Obviously could survive for a time. But savings would go.