So this has been happening for around a week now. My dd is 5, is non verbal and has developmental delays, and every time her dad comes home from work, or I am having a conversation with her dad, she will cry, like full on crying. I don't have any worries that anything untoward has happened when he has been alone with her, as he is a fantastic dad. It is driving a wedge in our relationship as every time we try have a general chat she gets upset. It gets that bad that I will take her to her bedroom to play and she will calm down when it's just us. I feel like I'm fighting a losing battle and I feel so bad for her dad.