APBYG:
Sounds great. You’re doing really good. Keep it up.
You’re strong and smart and you will get through this.
Keeping a low profile should help,(for now)keep in mind that you will not get her approval by offering more help around the house, on the contrary. It will most likely irritate her even more and will probably backfire. Many girls in your situation think that if they help more, etc then things will be better for them. This usually doesn’t work. When she asks for help, try not engaging in conversation with her and don’t overwork.
Above all, remember that this is her problem, not yours.
Wishing you a Chag Kosher V’Sameach. 🙂