DSD (10) and DSS (7) came to us for the latter half of Christmas day, and were supposed to be staying with us until Boxing Day evening.
We (DP, and my 2 dc) waited until 4pm to open any presents so that we could all open everything together, and have our Christmas dinner in the evening, together. So we did.
Christmas day night, DP had a text from his exw to say that DSD had asked to go home..... she had seemed perfectly fine with us throughout the day and evening, but apparently missed her mum and wanted to go home, so DP took her home the next morning and DSS stayed with us until the next day.
When DP dropped him off, exw wanted a word with him. Apparently, DSD was really upset that she didn't get as much as my dd for Christmas 
She also said that she felt left out (she wasn't, at all), and that her pile of presents weren't in the middle of the living room, they were at the side of the room, and that I was trying to make her feel left out.
Now - bearing in mind that we got her a brand new laptop - and she got an IPHONE from her mum - is this not really, really grasping? She had already opened her presents at her mums before she even came to us in the afternoon - my dd doesn't see her dad, so the only presents she gets are from me/us.
When DP told me about the conversation, I was furious. I already felt like she had just come and got her presents and then went home. Now I feel really kicked in the teeth, tbh. We spent loads on the 4 dc, equal amounts on all of them, but she apparently thinks that my dd got more little presents.... it's ridiculous! DP feels guilty - but why??? He's said that we'll have to 'try and make it up to her' on her birthday next month - MAKE WHAT UP TO HER?? Is a laptop not enough?
I think she's behaving like a spoiled brat - if that had been one of mine, I would have told them that next year they won't be getting anything and we will go and help out somewhere on Christmas day to see what's really important. I'm really fed up. This was our first Christmas together and now I feel like the whole thing has been ruined.