Posted in chat this morning but need more traffic as its urgent.
Dd is 5 and has selective mutism which is present at school. Change can make her increasingly anxious and upset. Ex hasn't seen her for 3 weeks and has text this morning to say his gf (whose due date with his baby he said it was last time when he sent someone else to return dd) is in labour so he'll get someone else to collect dd from school. He said he spoke to school about this on weds 
Aibu to say it isn't fair on dd to potentially be anxious all day not knowing who's collecting her when he could have just arranged for me to as he knows I'm off and to refuse this arrangement?