Dc is 5. Me and xh split up when dc was only a toddler, we spent the first two Christmas days together and since then I've had dc Xmas eve,Xmas day and then xh has picked dc up boxing day morning and had them until new years day. My ex told me when we split up he was happy for me to have dc every Christmas day as his family always make a big deal of boxing day and he wasn't that in to Christmas anyway. Fine with me.
This year however he decided it wasn't fair that I get our dc every Christmas and basically demanded that he collects him Christmas eve afternoon and will bring him back on the morning of the 27th. I told him that wasn't fair as I'd never had him for the entire Christmas period and he should at least come back boxing day. ExH got angry and said that they always do something special boxing day and I know that so he would definitely need dc boxing day too.
I got very upset about this as dc is just starting to understand what Christmas is about and we have been setting Christmas traditions in place, especially things we do on Christmas eve. I putty foot down and said he could collect our dc in Christmas morning, begrudgingly he agree to this and said he would collect dc at 9.30am Christmas day. The more I thought about it the more I realised that idea was no good either as dc would have to rush to open his toys and would really get a chance to play with them. So I told my ex fine, pick him up Christmas eve, but make it as late as possible.
I feel I should state here my exH lives an hours drive away and on his wishes has our dc 2 weekends a month. I have never, ever denied him access or made things difficult and i try to involve him in his Childs life as much as I can, despite him seeming uninterested when dc is with me.
Anyway as the weeks have gone on dc has
become increasing reluctant to spend time with his dad, crying and refusing to go at collection and refusing to speak on the phone to him. Dc told me "I hate daddy and don't want to see him" I kept telling him not to be silly and eventually managed to get dc to open up and tell me what the matter was. Dc told me it was
because they didn't want to spend Christmas day at daddy's. Since then we've had tears a few times and lots of insistence that he's not spending Christmas day at daddy's.
To complicate matters further I have just got a part time job, the only days I have off over Christmas are Christmas eve, Christmas day and boxing day. Obviously this means if dc comes back the day after boxing day I am nit going to get a full day to do our Christmas with dc at all. I'm in bits about this.
So when exH came to pick dc up on Friday I explained my work situation to him. He just pulled a face and tried changing the subject. I then said discreetly that while I was happy for dc to spend time with him Christmas I felt he should know that our child has expressed that he was very upset about spending Christmas day away from mummy and that that's why he had started being hostile towards his dad. Ex made no comment on this.
As they were leaving I said well, what are we going to do about Christmas? Ex sighed and looked irritated and said " well I knew you'd pull something like this, right I guess I could bring him home boxing day morning even though we were going out for the day and everyones looking forward to seeing him BUT if that's the case then I will pick him up Sunday (22nd) morning". So that means I will miss out on all the days running up to Christmas whenyself and dc go to church, visit Santa, bake cakes, visit family all the little things we both love. I will just have him boxing day before going back to work.
I feel like putting my foot down and saying he can pick dc up early Christmas day afternoon and keep him for a few days but I know Ex will go mad at this suggestion. He has threatened me with going to court for full custody before and I know he'll say he'll take me to court 
The thing is is our dc really wanted to spend Christmas day there then I honestly wouldn't stand in his way and I swear I haven't put any of these ideas about Christmas in his head. Dc is just going through a mummy stage at the moment.
So would I be unreasonable to tell ex I'm putting our Childs wishes before his own am to take me to court about if he wants? As I say I've never denied access and I'm happy to share christmas, a judge wouldn't be interested in this would they?
Help! 
And sorry it's much longer than I meant it to be 