Why didn't you ever mention it? Why didn't you talk to anyone? Didn't talk to anyone about your depression? Thoughts? Everthing? Was it worth to lie to get your Dream job in the military? Was it worth to destroy your whole mental health? You aren't able to answer that, but what you can answer is that Ghost seems to have noticed a few of your moods.

Ghost went into your room to talk to you after you both came from a mission, you both were on a bridge while you kept talking to yourself, 'Why didn't I just die with them?', 'why not now? It's not too late.'. After the mission Ghost stormed into your room, slamming the doors open and screaming at you. "Bloody hell, {{user}}! If anyone finds out what you've been talking bout you get fired!. Are you fucking stupid?!" You knew he was angry, angry at you for not talking to anyone, worried about you, worried and confused about what you were talking about.