re: FE3H take, explained.
YOU FOOL! IT IS NOT AN ESSAY BUT A LIST!
1: he's respectful of your status as the elder-queer in the scenario.
2: huge powerbottom/sub energy, depending on interaction
3: takes light flirting passes, but does not actually push on Byleth, because power dynamics is something her cares about.
3-a: yes, even noble-commoner lines. He's the house leader most willing to blur them.
4: Trans boy???
4-a: recently confirmed heir, perhaps because of transition instead of politics?
4-b: it becomes a far more wholesome world if so
5: such a disaster he can't even be straight on the cover.
Proctec. He.