For the past year, Neil has assumed that love was like a liquid pouring into a vessel, and that the longer you loved, the more full the vessel became, until it was entirely full. The truth is that over time, the vessel expands as well. You grow. Your life widens. And you can’t expect your partner’s love alone to fill you. There will always be space for other things. And that space isn’t empty as much as it’s filled by another element. Even though the liquid is easier to see, you have to learn to appreciate the air.