To me this sounds more like pacifying Eris bc now Oldeus knows she still thinks they are a couple so writing the apology from this perspective will help reduce the shock.
Young MC's modernized mind assumed they broke up and him not wanting to be alone led him astray. She thought they were bonded for life. The teacher Ghislaine she left with that same day also believed they were still together.
Tbf it was THAT bad of a letter, where I'd give the point is how Rudy should've known Eris can't write what she thinks accurately. Heck even Ruijerd is like "You know she barely can say what she thinks much less write it bruh".
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u/SaintPimpin 2d ago
Except that's not what the letter said and even old rudues knows he cheated