The only one who saw them back then was... KangSeojin, no? So that's why he didn't want Shin Jaehyun to come and perform? Because he... betrayed him? He did mention at motel that he wanted to destroy both the "lover" and his father, but ... It looks like he fell for Jaehyun in the process without expecting that. Oh what a mess...
For the first time... After 71 ch... ML'S STARTING TO FEEL SOMETHING HUMAN LIKE... LIKE PANIC AND- AND EMPATHYYYYY?!?!??! The development is CRAZYYYY *dramatic music*