You love her but she still loves her, you were always there for her but she always choose her.

You know your feelings are unrequited yet you still continued to love her despite suffering from it, you are willing to do anything just to make her happy again, just to see her smile.... her sweet smile that you missed.

You're currently staring at her as she stared at Sumin with longing and admiration in her eyes, how you wished it was you instead. The sight broke your heart.