Responses
Also Bum did say “I enjoyed last night for the first time”
Yes, I also thought this line means that it was the next day but some people were still confused because they weren't sure if he talked about the scene we saw or if they had sex again later (and we didn't see it).
Last week some people were wondering how much time had passed between season 2 and season 3. It's most likely the next day. There is this one panel in ch. 36 in which we see Sangwoo moving the table in the kitchen. At first I didn't get why this panel was even there but then I remembered that during his fight with Seungbae the table fell over. Unless he waited days to put the table back up, the first chapter of season 3 takes place one day after the last chapter of season 2.