He should be exposed to the public of the piece of shit he is. In fact that should be his ending, Instead of ending with the manager. I also have a feeling that in order to end the curse, Chani will either have to sleep with both of them or with that piece of shit.
If baek muyol was just a simple 2nd lead and isnt a fucking rapist i would wish for a threesome but no i dont want that guy to be satisfied