"Don't worry, you will be happy to know that everything your spouse was is now merely worm food."
That's certainly more realistic and no less helpful than the frequently heard, "Well, it must be a part of God's Plan."
What cosmology model do you put your faith in?
Speaking for myself, I don't "put my faith" in any cosmology at all. A few generations of supernovae seeding the cosmos with carbon, oxygen, and such is no more a good object for "faith," whatever that is, than is some mythical Sky Daddy. I have no clue at all as to what there was, if anything was, before the Big Bang, but the evidence pretty plainly points toward a scenario like the BB being the origin of the universe we now live in.
And a "depressing outlook?" How so? This universe is a neat place, with lots to learn. I had a depressed outlook a few years ago, due to excessive serotonin reuptake in my brain, but technology and my own actions have largely remedied that. I know I have a far better outlook than I did when I still had some suspicion that there might be an afterlife and a Sky Daddy.