The Memories I Erased

Summary

I pursued my older sister’s best friend relentlessly for three whole years before she finally agreed to a secret relationship with me.

However, after five hidden years together, right as I was preparing to propose, I overheard a conversation between her and her friends.

"Your first love is about to return to the country. How do you plan to handle that substitute boyfriend of yours?"

"Make sure you have a solid excuse when you break up with him. Don't make it too ugly, or Cora will never forgive you if she finds out her little brother got hurt."