I’m sorry your afternoon didn’t go to plan...personally I think your plan sounded lovely...you can make me mulled wine any time you like and I’ll happily sing carols and hang ornaments on the tree!
Firstly, though, DD needs to understand ‘enough now’. Do not allow her to ‘demand’ anything or you’re on the high road to hell.
DP - well. You have a problem definitely, it’s just hard to know which one with very little information to go on.
If he genuinely sees her ‘as his own’ then WHY wasn’t he doing ‘the Daddy thing’ and making it special for her and why wasn’t he watching her when he was the only one there with her?
Irrespective of DD though, he agreed and acted excited about mulled wine, putting up the tree and went out with you to choose the decorations, so why the hell was he a moody git later on? Ask him.
I have to say though, I’d have said ‘No’ to bouncing DD because I REALLY do NOT do toddlers getting their stroppy demands given into.
It does seem feasible though, that you think he sees her as his own, whereas he sees her as an add on to you that he’s not responsible for, either literally or emotionally.
Obviously you plan isn’t everyone’s thing, but he should either have said ‘No, you do that with DD, I’ll go and do y’ or ‘Yes, sounds great’ and joined in properly. Saying yes, then being a disinterested moody git isn’t acceptable.
I’d want a few things sorted out before he moved in, This attitude would be a biggie for me. Say what you mean and mean what you say. Honesty. It’s not a difficult concept.
Also, I’d keep the tenancy (mortgage?) in my sole name so that my & DD’s home would still be ours if it didn’t work out. She has you and she has her home, she’ll be fine if it doesn’t work out, don’t let that keep you in a relationship that’s not working in the future.