The word Greek sparked a memory.

. Funny how that happens. My step father was Greek. He was a nice guy and very kind to my brother and myself. A wonderful grandparent to my son while he (my step father) was around. Unfortunately, he always made it clear that he was a STEP father. After he divorced my mother, we never heard from him again. Course after the first divorce we rarely heard from our bio father.
I wrote this because the memory popped up and you seem to be a drift over the loss of your dog, and your wife, somewhat. But we all sustain great losses and we all learn to cope. We can get new pets, and new human companions, and, even new parents. Life is about leaving the past, in the past.
IMO, since you are not in therapy and your depression seems severe, you should get therapy. Why haven’t you gotten therapy? My husband has different issues and he has refused therapy as well. Although, recently he has agreed to go, but hasn’t yet. I doubt he will.