Mikami is too good, he still thinks positively about Akari's behavior, I mean, it's not Akari's business if they are dating or getting hurt, who is he? even though he is a good friend, he has no right to do that...
and how could Sato say, the person who ignored his feelings was Mikami, even though all of that was Akari's mistake who interfered and ignored the feelings of the two main characters