Do you know of any fictional characters who are apothisexual or apothiaromantic?

I’ve wondered about that quite a bit; I’d love to create characters like that—two characters who share a purely platonic friendship, or perhaps they adopt someone together. I’ve seen—and found interesting—cases where platonic friends adopt children and remain just friends! There was this video about two male best friends who adopted a boy because they thought it was a great idea.

To be honest, though, I don’t know anything about character writing, programming, or animation, but I’d really love to know how to structure a friendship like that in fiction—one character being apothisexual and the other being both (apothisexual and apothiromantic).

I have some vague ideas, but it feels overwhelming; I wouldn't even know where to start.

And what would it be? A short animated series? A visual novel? A comic? Stop-motion? I don't really have many friends to talk about this with, either.

I’m someone who enjoys soft romance, and I’m apothisexual.

But I’d like to know what apothiromantic people are like and how to develop a character like that—without falling into clichés like "oh, they're just bitter and distant!" I refuse to believe they're all like that! There are so many types of personalities, identities, and so on; you can't be that reductive about it.