Welcome to Psych Central! I think most ppl put on a good attitude/face for work, as it's rather expected? That's why coming home, kicking off your shoes and collapsing into the sofa feels so good.

Please don't judge yourself for faking it in front of others...
Depression is tough. I'm glad you are going back to your psychologist, and hope you've "caught" the blues soon enough for a sooner "fix."
Depression... true medical depression is one forever tough disorder,imo. Are you on medication (are you "allowed" to be?) IMO, with a spouse with an attitude like that...well, the spouse needs psychotherapy too!

I hope you are able to discern what is his problems and what are your own. You can make your own livable...can't do a thing about his.
Sigh. Maybe I'm not in the best shape right now to be giving "advice." So I'll sum it up with Welcome, come back as often as you need to!