Is therapy the ultimate requirement from you?

I'd recommend in or out of therapy, sit down with a needs list, self analyze and ask yourself what specifically is going unmet, and then express how it leaves you feeling, one on one with him.

For instance, when my SO is experiencing that whole 'fight/flight' thing, and I am in a quiet withdrawn state, if he doesn't speak up, I am unaware. If I am in a need for more not less space, it's up to me to speak up. It's the whole, let's not expect mind reading regardless of depression symptoms. It avoids or an attempt to minimize and reduce resentment. There's idiosyncrasies that we've agreed to be mindful and sensitive of. One, actually is for me not to pull away/withdraw, which actually complements my therapy work to speak up for my needs and with my feelings. Don't cling too tight, is his to work on.
I find the term communication loosely tossed out. Can't make a tiger have spots anymore than a leopard have stripes.
I agree about sitting down and talking. This just may be who he is?