I think you need to calm down when you speak to her, you know you are not cheating her, you are no longer living in the apartment.
Don't let her guilt trip you.
She chose this not you, you are simply letting her be, giving her space to be the independent woman she wanted to be.
Take a few deep breaths before speaking with her and stand firm by your words. I wouldn't of have asked for the financial proposal but you did so let it be.
You are simply detaching and letting her feel the pressure now.
Don't overthink it my friend. This may in fact turn itself around, keep praying. Set boundaries.