Nah he just showed up a few chapters before, 50 to be exact. I doubt he would go dead in just 4 chapters lol xD Clearly something must have happened there for Cha Hong to except Seungah's feeling. Yeah she could also mean it's her first time with the same sex, but it doesn't look like that to me, and I also hope author won't go that route.
Now we have to wait for 2-3 months for the next season. Hope the drama this time will be cleared up nicely, and no more conflicts. The main couple is really cute so I only want to see them together. So fed up with these dramas lol, though I'm pretty sure the final drama will be about Seungah's abusive ex.