HI,
My take on his not calling is that when a person feels controlled and is P/A, the most obvious thing is to do something that will provoke the expected response and thus justify the feeling of being controlled. So in the past, his NOT calling was to provoke and now, as someone else pointed out, he is probably testing you to see if you will call him back and get nasty.
And that is very controlling. Your C sounds like a good guy!
Maybe you could bring up something like the 'calling' pattern' in an innocent way...saying that for you, calling is showing love, so you lIKE to be called and to call. But maybe for H calling has a different meaning and it feels less loving than controlling. And that you are FINE with that if that is what it is..you'd just like to know, cause it is so hard to guess or to assume.
Of ocurse, it can backfire: my X could NOT accept accountability, so he would just deny and leap to another thing I did that was wrong. I think your C won't let that happen...he will keep the control.

I am excited for you! Keep the faith.
gd