This is a great time for you to work on yourself. That is all we can do is work on improving ourselves. Going to a C is good. Self help books, the first one I read was about self esteme. It made me realize lots of mistakes I was making with my kids. Take your focus off him and put it back on yourself. Remember that stupid poster in grade school in the 70s? If you love someone let them go if they return they are yours if not then they never were yours. Something like that. It is difficult to have faith. Trust me I know you are now entering my territory.
As diffucult as it gets I just have to hope that his love for me is as strong as mine for him. We have to relearn how we interact with our Hs in every way. On the phone in person on the internet. Sounds like your H just doesn't say anything when he is upset just like mine. I am working at controling my temper and acting like an adult. In every situation if it is getting out of control sit back and think. "How would and an adult handle this?" This is a time for reflection and work.