My story is eerily similar. We had a cat, Woodie, who made it to 19. We took him in as a kitten when my wife and I weren't even married yet, just 2 college kids shacking up. He lived through our marriage, moving to our first house, having our human kid, and every up and down in between. One day he just couldn't walk anymore, and it was time. That cat had been there from the beginning of my adult life. I get it. I get it.