Just like YOU, this song hasn't been released officially yet, so what I post here is not the official lyrics, you might find some errors and mistakes here and there and I hope you will understand. All credit to nurujunior.
Hangul+Romanized
나와 함께 있는 지금 이 순간도
nawa hamkke ittneun jigeum i sungando
너는 다른 곳만 쳐다 보고
neoneun dareun gotman chyeoda bogo
내가 사랑한다 말할 때도
naega saranghanda malhal ttaedo
너는 그저 웃음으로 대답하고
neoneun geujeo useumeuro daedabhago
