Before loving you, Hyunjin had loved a girl before and you could tell he loved her very much and was even in lovesickness with her for a long time when she broke up with him. Until you came into his life, you healed his wounds a lot, you liked him and confessed your love to him

but during this time you didn't feel that his love for you was real, until when argued, you heard him say it himself

"You're just a replacement for her."