Thank you
In the end, as you say, feelings pass and with kids quite quickly (not that we are in any way out of the woods.)
H just stayed up in "his" room.
Dc1 came down first wanting dinner, but in the end couldn't eat. But what he wanted was a bit of "normalcy" I think because we had a chat about his day and what he'd been doing. Then he went up to bed to watch some YouTube live thing.
DC2 started watching TV, we then chose something to watch together and we had a peaceful hour even if he wasn't into the film and has gone off to bed.
H came down to see if the DC wanted to go swimming with him tomorrow, dc2 said yes but then asked me afterwards if that was ok.
It turns out he was worried about how to split the time between us and not upset either one of us
I tried to reassure him about that and reminded him that they usually go to the pool with their dad, and they do there stuff with me, and it's fine and we don't need to tally up the different activities.
I'm glad he was able to say that.
I've tucked him in now and Dc1 seems to be asleep and so I am on a mattress in the living room (a step up from the sofa) and I will insist we take turns with H so that I am not the one who is displaced all the time.