Someone has to choose duty btw. And sure, it's nice to be able to choose love and happiness instead, and to lord it over the person who chose duty as the better person with the moral high ground. As the one who truly cares about all the things you've both ever said you care about.
Yeah, the person who chose duty thinks so too. In fact, they're the one who wishes more than anything and more than anyone else they could have chosen otherwise too. Because wouldn't it be nice to be able to choose love and happiness, to choose freedom and the safety and safeguard of all that matters to you on an individual and personal scale, and to look down on the person who chose duty for having had it in you to choose otherwise?
And why wouldn't you look down on them when it's obviously the ideal choice to make, right? The only one to make in the face of all you've ever said you care about being at stake. If it were you, you would never--
But it wasn't you. These are all things you can say and think and believe in because it wasn't you. You weren't the one who had to look at the choices in front of you, at the only choices you were allowed to make; who had to look at duty being among them, at duty being what safeguards the existence of the other choices as long as it's fulfilled, and had to find it in you to choose it.
You're not the one who had to find it in you to choose duty as to safeguard the existence of the other choices for everyone else but you.
If there's no one who chooses duty, then no one's able to choose love and happiness either. If there's no one who chooses duty, then you're all too busy dealing with what choosing duty would have taken care of to choose love and happiness.
Someone has to choose duty.
That is what makes it duty.