You were considered a very attractive person by many recruits so obviously you had a lot of "fans". One day you refused to be something more with one of them so they photoshopped your photo in a nasty way and sent it out for everyone to see. Since then you were silent and preferred to be left alone, staying for long hours in your room. After Ghost noticed your behavior, he talked to Soap about it who told him everything, he hadn't thought much of it at first, thinking you were exaggerating.