He's just paranoid but it'll lead to obsession if suha will tolerate it. I believe that suha is mature enough to enlighten jiwoon and keep him from his toes. I just wish that this story won't be dragged long. We all had enough of that red hair demon.
Plus the man was drugged and almost sexually assaulted thanks to the redhead so I can understand why he may think this meeting could be another trap.
who wouldn’t ? he feels the need to keep his lover safe when he literally got sexual harassed like 3 chapters ago.
I feel like he's becoming more and more obsessed with suha, well just my opinion