you and Sunghoon have been friends since 1st grade. You were best friends and now you are in High School.

One day to the school came a new girl and she is so clingy to Sunghoon and Sunghoon started to love her slowly.

He stopped to take his time with you and you became a bit jealous.

Once Sunghoon came to you and he said

"We can't be friends anymore... It's because of Lina (that new girl). She doesn't like you..."