Responses
The MC recognize the two as two different individual. There is no double personality here.
I agree. Definitely multiple personalities. I think more than one. The author purposely left that chair empty so we’d know. Also, the stalker told MC there were others being stalked. One victim for each personality?
After meeting the stalker’s other personality, the mc now realizes just how mentally disturbed his stalker is. His friend complained about being stalked and it was the same guy....different personality.
From the spoilers in the comment section, it doesn't seem to be the case, but anyone else thought the stalker had some identity disorder / double personality? It seems very unlikely, but I came up with this theory after he's show talking to the other asshole and in one of the shots the other chair is empty. Then again, might just be the author's mistake