Katie

I still think Jo-hee is a better choice between them, Cha Hae In become interested on him because he is strong, what if he is still the weak Jin woo? Would Chae Hae in notice or even throw a glance on him? Joo-hee was there and accepted him in his weakest so Joo hee deserves him more at his best, I think their relationship would progress only if the creator allowed them to do so. There is no really much character in Cha Hae In, she's already strong and all but Joo Hee has a lot of chance to improve and develop her character. And if Cha Hae In and Jin woo developed their feelings through mutual undertanding i think that if joo hee and jinwoo had a chance to be together again a much deeper bond will be formed for joo hee knows him in his darkest times. For me Joo hee was still the best pick.