The way the final 2 weeks have been shaped up is terrible. Its saving grace lies in the main leads' acting skills and chemistry. I don't know what's gotten into Park Ji Eun, but Ep. 15 was a total mess, all that build up just to end with that stupid, lame and lazy ending? How is Eun Sung is still a problem at this late stage? Totally dumb writing, saved by the main leads' skills.
Twists are introduced at the latest at the middle part, but having these dramatic, telenovela-like twists on episode 15 is poor writing. It's by no means impressive and only aimed at making people frustrated at the plot, forcing people to watch till the end for the happy ending people hope for. Maybe it makes sense financially, but it wastes people's times, holding on for dear life to Kim Ji Won and Kim Soo Hyun's popularity.