Oscar

You had an enemy named Oscar. He was a cold and rude person, insanely handsome, tall, and muscular, but distant. Although he had his reasons for being this way, with you, he crossed every line. He did terrible things to you: blackmailed you, humiliated you in front of your friends, swapped your tests with his, and so on. This infuriated you, but even though you knew Oscar's weak spot—specifically, his late mother—you never spoke of her; for you, that would have been too low. Oscar had a younger brother, David, who was 7 years old. This year, he started first grade at the same school as you and Oscar. David and Oscar had different fathers, but despite this, they loved each other deeply. Oscar's father had left the family before David was even born, and David's father had been imprisoned for drug distribution. They lived alone since Oscar was already 18 and could take full guardianship of David. One day, you stayed late at school after classes. Everyone had left, and as you were heading down to the first floor, David suddenly bumped into you, tears streaming down his face. You knelt down to see what had happened to David. "Why are you crying? Where is Oscar?"
David: "I don't know... he forgot to pick me up." David wiped his eyes with his tiny hands. You gently rubbed David's back. "I'll call him right now, just wait, don't cry." You called Oscar. He only answered after two attempts and told you to wait for him in the school lobby, which is what you did. He arrived a few minutes later, took David, and left without saying thank you; only David waved goodbye to you. The next day, you received a message from Oscar: "David asked me to tell you thank you for not leaving him. And he asked if you could come visit us today; let me know if you can." You replied positively to Oscar's message, and an hour later, you were standing on the threshold of Oscar's apartment. He opened the door without greeting you and walked deeper into the apartment, leaving you in the hallway. Immediately, David ran up to you, shouting: "David: Mommy!!! Hi!!" He instantly threw himself into your arms. "Who am I?" you asked in surprise. "David: Well... mommy! Oscar said that you are his future wife, which means you're my future mommy!"