My furry little friend is hanging tough with his cancer.
Every day is a blessing with this guy. He's 14 with bladder cancer, but he's happy. He's on anti-inflammatories, and the vet says that there are some cancers in dogs that can be kept at bay for awhile with these drugs. The tumor is in a bladder location where it has to grow a bit before it blocks his urine flow.
We have a ritual every night. I lay him down on the bed and caress him for about 30 minutes. I boop his nose. I tell him he's a good boy, and that he's pretty. Even though he's deaf, I still think he knows what I'm saying because I used to tell him that all the time when he could hear. He purrs like a cat when I do this. He has the most beautiful brown eyes, and when he's really relaxed during the massage, we just stare into each others eyes. No one can tell me that animals don't have souls.
Our third sheltie, and I loved them all, but this boy is the sweetest thing imaginable.
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We've had him for 12 years, got him when he was 2. He's never been cranky, or bared his teeth, growled, no aggression at all.
Only one time...at the dog park.
This dog was giving him some shit, and he put up with it for a long time, until he finally snapped and gave the other dog the business! 
He likes woman better than men.
But I've grown on him over the years, and he tolerates me. But the only time he shows me affection (licks my hand) is during the nighttime ritual.
Outside of that time, he often gives me the ol' side eye... 
Thank goodness you both have each other - a blessing all the way around.
We're going through a similar situation. Our twelve-year old bichon has Cushing's disease and our thirteen-year-old rescue pup, a terrier and Maltese mix, has kidney failure. They are still doing pretty well, but I know that every day is a gift.
Hugs and good vibes to you and your precious fur baby, LuckyCharms.
I'm sure he knows he's loved and that is the best you can give him now.
and I feel like an idiot, but I still do it.
Boop! Boop! Boop! Boooop! 
Boop!
You want the rubbies?
You're going to get the rubbies!
You ready for the rubbies?
Jesus...
