He was too domesticated, too civilized.

Too many thousands of years had elapsed since his ancestors had run freely wild.

He was lonely.

He could not get along without man.
Too long had he, and the generations before him, lived in intimate relationship with the two-legged gods.

Too long had his kind loved man, served him for love, endured for love, died for love, and, in return, been partly appreciated, less understood, and roughly loved.
So great was Jerry's loneliness that even a two-legged black-god was desirable, since white-gods had long since faded into the limbo of the past.