i went to look back at the end of the B4 arc in mty, and ashaf carrying guideau approached dunward interrogating dornez, dunward gets jumped and impaled, while ashaf is finally exhausted and just crouches, and then thats just about the last scene they all have together before oscar sweeps
then the next the scene skips later to when the arc is wrapping up, theyre mostly getting ready to leave b4
but dunward w his near immortality and fast healing is rubbing his cheek, so the two pairs must've just interacted, his bro picking him up. i dont think i remember them making any actual deal (and if they did it probably wouldve become null the moment dunward betrayed them), so... he mustve just had one final time where he assaults guideau? even after they were key to his dumbass revenge and he got blood from oscar? i hate him soo much, i hope he dies