Don't worry, I don't think anyones thinking that you're witholding deliberately.
As you may of guessed, I'm on you husband's side of this. DP does not have the highest libido in the world. She'd probably be happy with once a month, whereas I'd be up for every day if I could. It did lead to problems in the first years of our relationship, but we've learnt to compromise. I've learnt what times of the month she's horniest, and we work around that, so we'll end up with lots of sex that week, and then maybe once outside of that.
There was however a period of 2 months where some tablets my DP took had the side effect of sending her libido through the roof. It was fantastic, suddenly she was looking at me like she wanted to devour me. I wasn't getting turned down constantly, she was jumping me out of nowhere.
But what it did mean was that I found out my libido wasn't quite as high as I thought it was. I thought I needed sex every day, but that was actually worry that if I didn't try and initiate every night, what if I missed the night she was in the mood. I felt responsible for keeping our sex life going, because if I didn't, would it stop completely? When suddenly sex was on tap, I found I was perfectly happy with every few days.
To give an analogy, think of it like a holiday. I love a holiday, sun, sea, beaches, good food, no work, nice posh hotel. You look forward to it, you anticipate it. While you're there you're blissfully happy, and when you get home you remember it fondly, and look forward to the next one.
Suddenly you've won the lottery. You decide to move out to holiday destination. You don't need to work, you can afford to eat out every night, you've got a nice posh house. It's brilliant, you are objectively happier than you were at home, but it's not a holiday any more, it's your daily life. The anticipation is gone.
This is what your husband's feeling now. I bet he's significantly happier now than he was a year ago. But that comes at the expense of the anticipation.
That look of desire you're missing, that hunger. For you that felt good, it validated you, it made you feel wanted. But for him, that look was him feeling rejected, unworthy.
It's fine that it made feel good, but understand that it came with a cost. Surely what you have now is better?