Truly, nobody should have expected anything different from a manga like this, but it's still a shame the prince couldn't be a decent person, just with very different opinions on strategies and such. Instead the simple-minded author had to make him blatantly disgusting. Another shame is that Akira was driven under the princess using a scene like this. Like, nobody made any rational decisions, there were no real talks between Akira and Medis, there were no negotiations about the terms, no Medis explaining or promising anything to Akira using her own words, no deliberations, no nothing. Just get the dude angry because of a cartoon villain political opponent, and voilà!