Hi S.,
I am sorry you are having to deal with this frustration. Unfortunately, I have been dealing it for a few years now. My ex remarried. It's amazing how much control a woman has on a man...
TO ALL WOMEN: Please take note - when you marry a man who has kids, please be considerate to the mother of those kids.
My ex's new wife also massages his ego, lies, and forms ideas in his head. When I talk to him, he's always "Can you hold on a minute?" Then I hear him relaying the conversation to his wifey and his wife says "Well tell her this... and this... blah blah..." Why doesn't he just put her on the phone in the first place????
As I understand that she is now a part of my kids' life, I do not recall her being there when I gave birth nor do I recall her being there when we created them. Therefore, she really has no decision making rights to their upbringing... only scheduling conflicts if it pertains to their life.
However, having said all that, there is nothing you nor I can do. We could argue, yes, but for what? What would come out of it? I have come to the horrible realization that we can not control our exes. We can not make them do something... we have no say in how they should do something, what they should do, etc. However, if it's proven abusive and/or a bad situation for our kids, we could always bring in law enforcement (an ugly situation all around). I had to "let go" and try to deal with the things he does that I don't approve of.
My ex didn't want to Baptize our daughters while we were married. I am Catholic and he is Baptist. Given the Baptist religion that they don't get baptized till they accept Jesus in their hearts. I respected that, so we held off. When he met his GF (now wife) and she was Catholic, he converted to Catholicism & baptised my daughters without my knowledge or consent. I didn't even get to pick their Godparents nor was I invited!!! Nothing I could do...
Let go of the things you have no control over. However, enforce the things that you do have control over. I.E. visitation schedule... enforce the schedule. Don't let his life/schedule run all over you... There is a schedule for a reason.
As for when you need breaks... I guess you will have to find a sitter or try to schedule your activities around those visitation times.
Good luck!
L. :o)