You don't want her to ruin you financially so my advice is to get a legal separation prepared so that you are protected as much as possible. I don't know your financial situation but in my world I needed to get it done so I could make sure my kid was provided for and to force her to start paying her share of the expenses.

You need to look after yourself.

H 37
W 31
S 2

T: 7
M: 4

BD 12/18
Separated 2/19
Living back together 04/06/2019
W Moved out again 07/15/2019