"He should be a loner".
He already is anciently old, and so far he always was alone. If in this age a woman (who also have her habits and needs, different likes and dislikes) of a similar age would enter his life, his life pretty quickly would change to a hell.
Just look at Haibara, he's with her since just a couple of months, and yet she already managed to turn his life into a hell by forbidding him from eating of 90% of what he already was eating before Haibara entered his house.
Ethoiclya wrote:I think Agasa has secretly a thing for Shinichi, maybe even a lil for Yusaku
Isn't actually a vice versa? It is Shinichi who frequently comes to Agasa's house, not vice versa. I think we can count on 1 hand how many times Agasa visited Shinichi's house. I say Shinichi secretly loves Agasa and this is why he is a super frequent guest in Agasa's house.