Gu Lang despised Qiao An the most. If Qiao An wasn't Roy's good friend, he would never interact with such people.
Qiao An fell in love with Gu Lang at the age of 17, but this man was actually her best friend's boyfriend.
Roy is Gu Lang's childhood sweetheart and Qiao An's best friend.
His love is not available, and her love is not available.
Intention: Don't give up easily