XP said he wanted to be known by his first name when DD was born. His parents were known by their first names and so while I thought it was a bit weird I understood that if that was his preference and DD has always called him by his first name.
He now lives in a different country, has married and has a baby. DD skypes every week and is with them for the holidays.
XP is 'Daddy' to new sibling and DD is absolutely gutted. She hasn't/won't said anything to XP but she has cried to me. 'Why didn't he want me to call him daddy but he wants her to call him daddy' etc.
There are obviously lots of differences she's seeing anyway (he never lived with us).
I know I don't get to have any say in this and XP and his DW will have come to this decision together, people change etc, but it makes me so sad for DD. AIB massively U to think he should've stuck with the first name thing for DD's sake?