Just a random thought I had

sounds like orchidromantic to me

That’s the opposite situation, I’m talking about where you want to date somebody, but there’s no one you could ever potentially have an attraction for, and that missing attraction is what would cause you to want to date that specific person

Of its like that... Maybe Cupioromantic. I think that's how you spell it

i have no idea then

I think it's just alterous

Queer platonic relationships exist and might fall under that umbrella.