Manipulation... Or True Love? (Villain x protagonist Princess) story

The hero wins, he gets the Princess, wins/ defeats the bad guys and villains they live happily ever after, yada, yada, yada, are we done yet?

Well...
Is the story over? is it really happy ever after?

the Princess named Ava Jane is soon be wed to Hero Adam from as a reward for "saving her and her kingdom villages." However Ava Jane didn't know how to feel about this, especially how Adam acts differently and less charming and other of his positive character traits compared to him on his hero's journey.
Instead she possible feels more controlled and trapped then when the villain captured her as hostage.

The Villain Marcus Xzavier is in the castle village jail for his crimes and defeat.
Although not a place for a Princess nor many woman, Ava visits the dungeon, guards and prisoners. (deep down hoping that most could possibly get redeemed with the right audited and tools. However after hearing what Villain Marcus Xzavier has to say, his stories, views and other prisoners views Ava becomes more untreated and visits more often.
What happens when Xzavier promise Ava and her kingdom a better life (and moral?).

What happens when a supposed to be villain falls in love with protagonists/ princess? and what if she might just like him back?

Inspired based on Hero In Your Story Song by veryveryVinny, Hazbin Hotel, Maleficent, tangled the series, Princess Bride and other things.