Nmom questioning me after a week of grey rocking

My covert Nmom called me for around 20 mins, and she was talking about how I've changed. She said stuff about how much she loves me, how she wants me to be open with her, while also victimizing herself and not taking accountability for anything she did to me. She also told me that she will not let our relationship get ruined, which felt kind of unnerving when she said it.

I tried to say the least I could. She was pushing all my buttons trying to get me to break, and I did crack a few times, but I mainly just said ok or yeah to it all.

I feel like I need a new grey rocking strategy. For context, I still live with her and I'm dependent on her for everything, but I'll be able to pay for most things myself soon, except for housing. I've mainly just limited my contact with her and respond with one word or short answers, saying please and thank you whenever she does things for me I'm still dependent on her for.

How should I approach this?