One thing that would have helped me is for H to talk more during sex and foreplay, to make it clear that his desire was for me specifically.
Also, although he never goes straight to intercourse, I am one of those women who needs to be somewhat aroused before I want certain parts touched. It wasn't until I did some reading last year that I realized this is something men might not expect.
I suggest reading books geared to women who don't like sex to see some of this perspective.
There is also work I've done on my side.
Me: 44 H: 44 Kids: 20, 16, 16, and 10 Together/Married: 22 years H announced he was emotionally detached and considering D: 4/4/16 H announced he is going to try to stay and reconnect: 5/1/16