It's not always easy to speak your mind, sometimes you need to be forced to do it. Sometimes, it's better to just keep things to yourself, play dumb, even when your whole body is aching to come clean. So you shut your mouth, keep your secret, and find other ways to keep yourself happy.
As babies, we were easy. One cry meant you were hungry, another you were tired. It's only as adults that we become difficult. They start to hire feelings, put up walls. It gets to the point where we don't really know what anyone thinks or feels. Without meaning to, we become masters of disguise.
Anatomia de Grey - Temporada 8, Episódio 6