The time to respond is when it is about you S. A simple I'm sorry we have made plans already would have been enough. I agree with Mozza you need a set sched in black and white.
I understand how you feel. I felt I backslided when my STBX was making attempts to get closer a couple months back. It is cruel. They just want to make sure we are still an option. It's all about them
I feel better also with less contact. Unfortunately with a child involved there will have to be some contact.
Go have fun with your S. A day outside may improve your PMA
Me 52 H 44 T9 M 5 BD 12/11 H split 8/12 OW moved in 12/12 OW gone for good 6/14 We get closer again 9/14 SD 13 Me 4 Grown
Accept what is...let go of what was and have faith in what will be.