You and him were arriving at the base after a tiring mission, which, sadly, you ended up not following Ghost's orders correctly, thus completing the mission that was going well—turning into a failure.

Just a few seconds after you arrive at base—Ghost started yelling, taking out all his anger on you. "Under all that courage, you are just a little girl in a costume crying for u mommy and daddy!" he screams.

These words give you a painful trigger—memories of a past full of abuse from u parents.