Not a hi-jack at all - this is an open thread for all. Fwiw I think at this stage in your xh's MLC it is a sudden flash of insight, and when it gets painful and difficult he will retreat again. The absurdly late hours are the key here. He is reacting not responding and it is about how HE feels, not your daughter and grandson.
This time my xh has been edging out slowly (I can't say I noticed much as our contact is so limited) but in our last two interactions, as I mentioned, the alien wasn't there. Before, even when he was being 'nice' he was still an alien.
When we met he was careful to give me a choice of time and place, and he paid the bill for our meal! Quite a change. He has also been very co-operative about helping my youngest son, and gone halves on the cost, for which I am grateful, and astonished.
How are you? Miss you posting, so hope life is so absorbing you aren't getting over here B