Sarah Dessen said this quote

Suddenly, I was just sure he was going to kiss me. He was there, I could feel his breath, the ground solid beneath us. But then something crossed his face, a thought, a hesitation, and he shifted slightly. Not now. Not yet. It was something I'd done so often - weighing what I could afford to risk, right at that moment - that I recognized it instantly. It was like looking in a mirror.