Have you been watching the behind videos too? I just realized I missed #3 and had I seen it Jaejuns kiss would have been slightly less of a shock cause of the way they are acting in those clips.
I had almost the same reaction as you when Jaejun did that! It was 6am and I almost woke up my whole house cause I was like "This mf better not.... NOOOOO!!!! WHAT ARE YOU DOING JAEJUN!!!"
I am just waiting for an explanation for the shower scene with Jihan and the blood from the beginning. Hoping like maybe that will make this whole thing make a little more sense. đ€