and I STILL can't get my depressed Italian dad to go to counseling! So, I can relate...and I'm so sorry because I know how hard this must be for you. Take care of yourself and hang in there.
I do have one suggestion that I don't think has been mentioned yet. I'd suggest that you start by encouraging DH to go in and talk with his medical doctor about possible depression (as opposed to a therapist) and see if some medication might be a good place to start. In my "professional" life (I'm happily a full time mom at the moment), I ran across many depressed men who would refuse to go to counseling. However, not too many of them would refuse to go to a doctor for a medical consult. At least most of them could view this as "solving a problem" whereas the counseling bit was too esoteric and seemed whiny to them (my DH included!). Remind him that he'd probably take an antibiotic if he needed one...an antidepressant for a medical condition is no different. A good dose of an antidepressant might give him enough of a leg up to realize that he needs some help and that counseling might be able to do something for him. Antidepressants can make a world of difference, though they aren't the full enchilada IMO.
Even if he refuses counseling after medication, at least he'd be a little bit better or maybe more energetic. If he ends up on one, just make sure that he remembers two things: 1. many antidepressants take at least 2 wks to reach full strength and 2. if one doesn't work or has unpleasant side effects, he needs to try another one. There are many good ones available now.
I'm so sorry. Prayers going out for you both.