Ex is SUS.

Yeah
While lots of people aren’t on good terms with their Exs, the ways he said it was very suspicious
Considering the rumors ML had in high school I feel like the Ex is connected to it somehow

Also for some reason considering early chapters I feel like ML knew our MC in the past and MC just doesn’t remember (we know the troupe: they meet as kids few times and ML can’t forget the cute kid he met… and the way ML recognized MC is by his scent… idk)
(Not spoilers btw just speculation)