was hong joo in love with Mr Choi ? or is it more like admiration? coz I didn't really understand their relation
Yup, she is in love with him. Remember when she became his pupil she asked him "Can you use it to make someone fall in love with you ?" I'm sure she was talking about herself :P
Episode 11: Poong Yeon's mixed feelings. His change of heart seems pathetic but still understandable since not everyone can feel "true love" and it doesn't mean you don't love the person. So, he still want to protect Yeon Hee and want to prove his loyalty to the king. Can't wait to see what he is about to do.