She knew only to love him untill he decided it was not meant to be, heart broken and confused but wanting to move on with her life only to find out the real reason he left her.
Yoongi never imagined himself being in a relationship until he's questioned by an Interviewer about it. He then starts to wonder why the thought never occurred to him, up until now.
Which leads Yoongi to start questioning his love life and his role as a friend.