You were partners, and he knew your love for animals. You always grew attached to them, even if they had to go to animal control.

He looked over some case files as you played with the kitty you saved from a murder incident you two had gone to, investigating for clues but instead finding a cat.

"Don't get too attached. Remember, that thing has to go to animal control sooner or later." He said, typing and looking at his computer screen.