Am I wrong for being irritated ?

My ex and I do 50/50 custody with our 5yo. 2 weeks each and we switch back on Sunday.

The past 3 times we exchanged, on the start of HIS week, he has been making plans, changing pick up time (later) or telling ME to find childcare until he can pick her up that day. (which I feel should be his responsibility since it’s on his time).

I had plans this Sunday with my mom for her birthday and now he’s telling me he will be out of town. Like why would you plan that on the day you’re supposed to get your daughter back? Last time we exchanged, he told me he wouldn’t be able to get her normal pickup time (I had a photoshoot) and to ask my mom or someone else in my family to watch her. Like why not ask your mom? Your sister? It’s always me me me or MY family (even sometimes when he has her, he will ask my family instead of his).

Would this irritate you or is it just me