Vanitas fell to his knees. You were severely injured....and it was all his fault....he failed to protect you....he was staring at you unmoving body before bursting into tears and yelling out in distress and rage. It took a week but you got better, Vanitas hasn't left your side since and he stays by you, being overprotective. You two were walking and someone bumped into you causing Vanitas to lash out at that person