Why did he even marry the princess? There's a limit to being "easy going"! Especially after having been in one loveless marriage that ended in divorce, you'd think he'd be more careful about his second marriage.
@Kynnath I know right? But then again it feels like it may have been political pressure that forced them to get married. After all "Hero" and all that would make it extremely difficult to refuse to marry the princess since by doing so you'd most likely end up being an enemy of the state at this point.
Sooo dude failed to see his hot comrade was in love with him, than he married a princess who literally only wanted his seeds and his talents... and now after all that he goes full NTR?