He'd never hugged Cameron back the handful of times she had, and he'd never really shown her any sort of affection up until now. Even his kisses couldn't be construed as that since they were always during sex and always so rough. Lightly, his fingers traced up and down in the spot on the small of her back where his hand rested. Burying his face in her hair, he whispered "I love you", consciously saying it unlike he had with Cuddy. Maybe he did love Cuddy and Cameron both. House didn't know what was going on in his head right now when he usually did.