A lot of us have our stories of Life Before A(LBA) and Life After A (LAA). Our innocence is forever destroyed. Yup, I get that. However, I see a lot of positives in your situation.
-H likes your home cooking -H was chatty with you on text -H was warm toward you at the kiddo exchange
Focus on them!
As you said earlier, H is getting adjusted to his new role at work. It has only been 2 weeks now. I read that the average learning curve is 6 months. So try to be more supportive of H in his new job.
Sandi and Train, I believe, both have said that men desire affirmation and admiration. What have you done to show H them in small ways? Think about it, MDU.