“Love you,” Xavier said just before he drifted back to sleep.“Love you more,” I said playfully.“Not a chance,” Xavier said, fully awake now. “I’m bigger, I can contain more love.”“I’m smaller, therefore my love particles are more compressed, which means I can fit more in.”Xavier laughed. “That argument makes no sense. Overruled.”“I’m just basing it on how much I miss you when you’re not around,” I countered.“How can you possibly know how much I miss you?” he said. “Have you got some sort of built-in miss-o-meter that can give us a reading?”“I’m a girl; of course I have a built-in miss-o-meter.”