WW in MLC affair and I need advice..

[Natash]

Im in need of some advice. My W makes "plans" every other weekend. I knew this coming weekend would be one she wanted to "go out" and give me some song and dance story. Saturday I am planning to take my girls to two easter egg hunts as well as a gathering at my inlaws (I know it might be best to not go but I dont want to ruin Easter for my girls). Sunday, same thing, Easter with my parents so I wondered if my W would make plans for Friday. She has put in extra time at work this week and would be able to leave early and Id never know.

So, five minutes ago I get a text "Do you have plans for Friday". So far I have ignored it. How should I react to this text? Part of me says "nope, I'll be the babysitter while you go out and run wild" but I know that is not the correct response. I do want to be able to spend the time with my girls and if I tell my wife Yes I am doing A,B, or C or ignore it, she will make arrangements to have my MIL watch the girls.