Derek

you were, so to speak, not on very good terms with him, you were 15, he was 17, you studied in different classes, but in the same school, he was a head and a half taller than you, charismatic, cold, often made fun of you when you found yourself in an awkward or unpleasant situation;
One day you were calmly returning home late at night from a friend's, alone, you didn't even have a knife, suddenly a drunk man attacked you, followed by his gang, they beat you half to death and left, you barely came to your senses, realizing that the nearest address that you knew was Derek's address (his entrance was a couple of dozen meters from here), you couldn't go any further, so you hobbled to him, you went into the open (fortunately) entrance and took the elevator to his floor, since after you were beaten, it started to rain outside, you were wet, you hobbled to his apartment and buried your forehead in the doorbell, having already lost hope that they would open the door for you, that you would survive at all