Being a few years younger than Stitch, Cookie seemed to help reinvigorate the older pup. And in return, he acted as a mentor of sorts for her. The two of them were as close as could be.
"They loved each other very much," Dufur told The Dodo. "Cookie would always egg him on so he would play with her and they would take care of one another."
Stitch and Cookie were so perfect together, in fact, that Dufur was able to feed them from the same dog bowl without worrying about them squabbling. Stitch, in his own way, had trained Cookie to eat only her half of the food provided, leaving the other half for him.
Sadly, though, with the older dog's passing, their time together has come to an end — but their special bond is clearly not broken.
"This is Cookie’s first time alone," Dufur wrote on Twitter. "So since Stitch is gone, I’ve been feeding Cookie less food. Well before I went to bed, I wanted to check to see if she ate. And so I did, and she still left half of her food there so Stitch can eat."