Feel really sad on his behalf. It's odd. Mil and sil live near each other 200 miles away from us and are in a different tier so I can't think they somehow expected us to visit or are hacked off that we haven't. The expectation wasn't ever set that we would.
They have been together today as is usual. We normally see them all at some point over Christmas but we always make the effort to go there, or call in on the way to my family. They only really come to us to stay in summer. (We're in a v popular holiday area)
We've sent cards, presents, texts, tried to organise a zoom and had absolutely no contact from sil in response today. I can see my message has been seen. Mil responded to my text thanking her for my present but is now back home alone and just asked me to tell dp she'd contact him tomorrow. There's no fall out I'm aware of. Mil can be difficult but we try and stay diplomatic.
I just find it strange that they wouldn't want or respond to contact from immediate family members on Christmas Day. It's not the Christmas anyone wanted but we've had a zoom call to say merry Christmas to my family and I'd have liked the same for dp. I know he's feeling hurt 