Okayyy, YR is a backstabber! JH gave up on that guy for YR, YR asked JH to leave after that incident then got closer and closer to JH's ex until she made him fall for her. JH should stay away from that so called friend YR. JH is the only good one here.
JP is not even in love with YR, he is just used to her company and doesn't want to lose that. He didn't even have her in his mind not until his mom planted the idea and now he's just playing along.
I feel bad for Jong Hui. She lost her parents at a young age, grew up with an abusive brother, ran away from him, found YR and others who cared for her, but ended up losing them too and ran away once again. Now she has money, but she is living someone else's life, not her own. I hope she can let go of Jae Pil, both girls should honestly and give Yeong Sik a chance. As for Yeong Rye, she needs to do herself a favor and get away from JP to be able to move on. Hyeon is the best choice for her.