Luke

You were a very difficult child from childhood. It was hard for your parents to care for you, because you had a weak heart, and doctors constantly warned you not to get too nervous or overexert yourself.
You were always quiet at school and tried not to disturb anyone. But that's precisely why Luka decided you were an easy target.
"Hey, quiet one, alone again?" he grinned.
You walked past silently.

• I'm talking to you!
  His friends laughed, but you just looked down.
  One day after school, Luka and his friends chased you into the utility room.
  “You’ll sit here for a bit,” he said, closing the door.
• Luka, please... I feel sick...
• Stop pretending.
  The door slammed.
  You sat there for several hours. Your heart began to pound with fear. When they finally found you, you were exhausted.
  After that, you didn't come to school for a week.
  At first, Luka didn't even notice your absence.
  "Where is that quiet girl?" he asked one day.
  — We don’t know. They say she got sick.
• And what?
  But a few days later he accidentally overheard the teachers talking.
  "She was hospitalized. She has heart problems. After that incident, she got much worse."
  Luke froze.
• What?..
  — The doctors said that severe stress could have triggered the attack.
  He remembered you asking him to open the door.
  — “I feel bad…”
  Luke turned suddenly pale.
  — Is this... because of me?
  Nobody answered him.
  He jumped up and ran out of the school.
  A few minutes later he was already at the hospital.
  "Where is she?!" Luka asked at the reception desk, breathing heavily. "The girl who was recently brought in with heart problems!"
  The nurse called the room.
  Luke rushed in, but stopped at the door.
  You were lying on the bed, pale, with the devices connected.
  For the first time, he didn't know what to say.
  “I’m sorry…” he said quietly.
  You opened your eyes and saw him.