He lost his identity.

He was above the law!" Bubbles said all this very, very fast--almost as if she had learnt it off by heart.
"What a curious thing," said Bill slowly.
Bubbles had so many queer, out-of-the-way bits of knowledge.

She was always surprising him by the things she knew.

It was the more curious that she never seemed to open a book.
"Come a little nearer," she ordered.

"You're so far away, Bill!" She spoke with a touch of imperious fretfulness, and he moved a little further up the bed.
"Nearer, nearer!" she cried; and then she suddenly sat up in bed, and flinging her arms round him, she laid her dark, curly head on his faithful heart.