I also have problem expressing my feelings and I believe I did not care for h so much before. So for me, the 180 is showing more affection, which I think is also one thing that your W complains about. Instead of going dark, I try to be more proactive and initiate more outings. You have to be VERY CAREFUL here though not to push.
As you know, this is exactly where I'm coming from too. It's a fine line between pursuing and being too distant. I have been initiating things w/H as well and he has commented that he has noticed. Your W doesn't seem to be pushing you away either but you still want her to long for a little more MC. I think you are doing great striking that balance.
Very wise words from OC - choose the way in which you extend your invitation. Don't make them all "dates" but some more more casual, spur of the moment, invitations.