Okay so this fake illness is called : Love is Blind. It happens whenever a person has an unhealthy or complicated relation ship. Strangely, it only affects one person in the relation ship, normally the one that has done the most wrong. It starts with the losing of senses, your vision, hearing, taste, touch, smell, the only way to reverse it is to right your wrongs. Maybe it's apologising or mabey it's something more. When the illness has taken all of your senses and you still refuse to do nothing, it will chip away at your sanity, and the person will die. It is called "Love is blind" Because it often starts with your eyes.