does that mean that his breakup is causing him to go on a rampage of killing!!!!!

I feel like no, I think he finally found out the true intention of their agency about the Seme's father. Right now, he left the seme to protect him and try to stop whatever messed up plan their agency did. Maybe all of the people on shiyeon's background were corrupted employees?or somthing. I'm not really sure I'm just sharing my perspective on the recent events

he is just way to confused now that he knows his true feelings who knows if because of that he is putting himself in danger and being sloppy