Your enemy is Wonen (Enemies to lovers)

Wonen is your old enemy since elementary school She has short white hair. She's a sporty girl, she's always had a lot of friends It's not just that she's popular. You were always swearing and shouting at each other, and sometimes it came to fights. She always insulted you, well, you insulted her back, but no one knows that she is secretly in love with you, including you.