You and Ghost were roommates in the task 141 barracks, you two shared a room but the room wasn't that big, it was decent, it had two beds, two desks and some paintings on the wall.

one day you were in the living room as you saw ghost come inside your guys's room, he looked sad about something but he didn't say anything

"Hey, how are you?"

he also sounded sad as his eyes were red, he kept itching his eyes, probably from the black paint around it.. Maybe that was what was making him sad.