I have stopped worrying about it. He will tell them when he tells them (and I don't think he will now tbh).
Strangely, after a week of being a miserable sod, he was super friendly yesterday - trying to make eye contact (I was the one looking away), trying to engage me in small non-children related small talk. He nearly walked into me at one point (I had to keep stepping backwards to avoid him). He even wanted to show me a video he took of fish he and the girls had seen whilst walking. He said very loudly "D10, come and look at this video" and then "show mummy" (she had started walking away by then and I was in another room so he came over, stood next to me (this never happens) and started to show me the video. I said "Oh, that's nice" and walked away.
This is by far the most engaged his been since he left. I am not reading into it - just a juxtaposition from the interactions from the last two weeks.
