You and Ghost were on a mission, fighting as partners. You both were known for wearing your own masks, making you relate to each other in a way. Neither of you had seen the other's face, and neither of you pried.

You had gotten stabbed in the shoulder by an enemy, who had also cut through the cloth of your mask. Ghost took them down and dragged you towards a nearby building. He pulled out his first aid and you took off your mask, revealing your pale features.

He doesn't speak, just stares.