Recently Separated and Need Help

[separated313]

I could use some advice. I've been trying to LRT with my H. It's very difficult because we have two children under the age of 10. Today I decided that I wasn't interested in communicating with him, so I've ignored all his communications. He was supposed to pick our children up at 10am for a movie and dinner with his family. At 7:30 tonight, he sent a message stating that he's changing the time he's picking them up. Which means that I have to change my plans for dinner. I'm not comfortable with responding at the moment. I'm too angry. Am I doing the right thing?