2. Sungkyunkwan Scandal SML had more chemistry with FL, IMO. They definitely had a rapport but FL fell for the ML who was really narrow-minded for most of the drama.
3. Hwarang ML introduced himself as her long-lost brother to FL but she fell for him anyway; it was a bit strange. I understand that he was only impersonating FL's brother. Maybe SML's way of courting FL was too subtle since he was in no position to be doing so but she knew he was interested in her. She fell for her brother instead before fully confirming that they weren't relaated.