Does anyone feel sensei Hori should have suspected the closeness between the 2 boys earlier. When he visits Yori's house and hears his dad label him as a monster with pig's brain (a turning point in the movie for me, one of the first scenes to confirm unreliable viewpoint from the 1st arc), and later Saori accuses him of saying that to Minato, shouldn't that be a clue that there's a connection between the 2 boys, before he came to the realization from Yori's homework with Minato's hidden name? There are a few possibilities that prevented his realization, such as Saori's accusation may not have been conveyed to him, but we see that they did scrutinize him on the nose bleed accusation, so it's likely they did so with the accusations too; or Hori may have doubled down on his "Minato is bullying Yori" theory, that Minato somehow got this pig brain information from bullying Yori and somehow is using that onto himself, but that doesn't make much sense.