This is good Turbine, keep going with what is fair and court ordered. Do not put up with her not wanting to comply just because it doesn't suit her. You're spot-on when you say, "this is a long temper tantrum". Yep!
And you can't reason with toddlers.
I'm concerned you're texting her about things that are not logistical in nature. A R talk via text? Stop that. It's not going to go anywhere and it's going to A) Make her dig her heals in more because she knows she can hurt you and B) Just hurt you.
The burner is hot. Please stop putting your hand on it.