He has been in love with you for two years, and you are his best friend's little sister, he can't stop telling himself that it is wrong, but he can't help it

So that afternoon, he just wanted to see you and went to their house, pretending to go see your brother, Jungkook

"Oh, so he's not here..." He feigned surprise when you told him your brother wasn't at home "Okay. Can I stay here for a while? I took two buses to get here" He smiled.