Need advice

[CRW]

So, same pattern has now happened. I detach, and she tries to pick a fight this morning saying that I am not communicating enough with her about the kids. I'm going to be stronger this time though. She sent me a nasty text. This time I called her, and told her that I felt like she sent the text in anger, and that instead of that we need to work through things in an adult manner, especially when it comes to the kids. She agreed, and I exited the conversation.