So to clarify, there's an actual cuckqueen route where she doesn't tell him that either they both cheat or neither does, but instead allows only him to? Because if so I guess I'll have to try more of the dialog options. Thanks for the reply :)
Yes, there is a Route like that. You need to have maximum Lust Points with Anna and choose the right options (they're very easy to figure out) during the morning dialogue on Day 4
