Grey's Anatomy, Season 3

Cristina:
[voiceover] In some ways, betrayal is inevitable. When our bodies betray us, surgery is often the key to recovery. When we betray each other... when we betray each other, the path to recovery is less clear. We do whatever it takes to rebuild the trust that was lost. And then there are some wounds, some betrayals that are so deep, so profound that there's no way to repair what was lost. And when that happens, there's nothing left to do but wait.