How I knew I was keeping The Man:

When my ancient matriarch cat killed a mouse, and left it for him as a present, he picked it up by the tail and said "thank you" to the cat and asked if she minded if he ate in private. Then he closed the bathroom door, and disposed of rodent, but told the cat it was delicious.

She loved him. She hated everyone else, but she loved him. She was my cat, he was *her* human. :)