Sanderika, Oz and Nell, Thanks so much for your feedback and warm hugs to you all! I have read and re-read your posts tonight, trying to absorb all your pearls of wisdom.
I am agreeing that there is definitely something different happening with H. It's a tiny move in my direction but I feel that it's there.
Today I text H to tell him D was home from school and feeling quite low(She's had a fairly significant issue to deal with where both H and I believe she has been wronged and neither of us are parents who run in to save our kids). It is usual for me to text if the kids stay home from school. Usually H would respond "ok, thanks" and would phone/text D or S during the day. Today he replied to give his impressions after speaking with her last night. I asked what to do from there and he replied again with his thoughts and I said "Ok. Have a good day." He replied "U 2." Then he rang D and came over to visit with her and to offer her to come over to his place. He text her through the afternoon and then tonight invited her to dinner eventhough they were just there last night. This is like H of old!!
So I am seeing glimpses of the caring and loving H towards the kids and a definite move towards spending more time with them. He's definitely warmer towards me, too although I am a long ways behind the kids!!!
He's also back out walking everyday.
And D tells me that he's been commenting positively about the changes/tidying I've done around the garden.
I am still reluctant to issue an invitation. I don't want to seem like I am pressuring but also it is his birthday coming up so I will talk to the kids and see if we might do something for him as a family. I'm not sure about an invitation from just me. Losing my courage these days?