This man sounds horrid, he left your daughter on christmas eve...im sorry but isnt xmas supposed to be about families?! He left his family for another woman and moved miles away, that was his choice, and I think your daughter has been more than reasonable, if anyone is unreasonable, its him, he sounds like a spoilt brat that wants everything to go his way, and throws his dummy out when things arent going to plan, he is putting his own feelings 1st instead of his childs, if the little un is used to being with mum all the time and sees this man once a month, im sorry but he must be like a stranger to her and to send a child off with someone who is a virtual stranger is not fair, especially if she will be distressed. I would front this man out and stick to my guns, your daughter is obviously putting her childs needs 1st, its a shame her ex isnt! He should try and build on the relationship him and his daughter have..if any? and then try and take it a step further, by staying overnight