Brian, I can sympathize with you on how you feel about your dog.
My Wife had terminal cancer and died ten years ago. I stayed home and took care of her for the last couple of months. She had two little dogs, Buddy and Buttons. They stayed with her 24 hours per day when she was sick and gave her much comfort. The only time they left her side was to eat, drink, and go with me for a walk about 4 times a day so I could get out of the house. I promised my Wife that I would see that Buddy and Buttons would be well taken care of.
After my Wife went to the hospital to never come back home, I will never forget how Buddy would look up to me with that WTF is going on look in his eyes. He had spent the last 5 years totally in my Wife’s presence and could not figure it out.
Buddy had a tumor on his intestine about 4 years ago when he was 11 years old. The odds of him coming out of very difficult surgery and have 2 or 3 good years was about 20 to 25% so I had to put him down.
Buttons is now about 12 now and has had a heart murmur for about 2 years. A complication of the murmur is congestive heart disease. They have some pretty good medicines to treat it so I am spending $100 a month for his meds and my friends think I am nuts. I am glad to do it; he seems to feel real good and is happy most of the time. Besides, he’s my best friend.
I wish the best for you and Snoopy.