
Did he snap?

I think/ hope he is just acting like that to make Mitsuki realise that the "I should've lived like an omega" stuff is stupid/ wrong. And he'll stop when Mitsuki is pushed too far by him (rejecting him and crying). Because if he really wants to make him pregnant right now, this series will turn out to be really shitty.
Hey duke, do tone down your affection on that bitch.. she's not even your own blood (remember? she's from the mother being raped) and you're willing to be a home wrecker?? What do you plan to do? Kill Elissa so she can replace her? Pressure Ginger? Go to war against Ginger??