argh wtf with the last panel, who is he kissing? was he drugged? if not, he shouldn't go a...

argh wtf with the last panel, who is he kissing? was he drugged? if not, he shouldn't go around kissing anyone. Gosh why are they making me feel so frustrated. Jaeon where are u ?! Idc at this point if Yeonwoo is ML. I just want to see Jaeon