There is another one that you don't mention here. I don't know if there is a technical term for it, so I have been thinking about it as "biological urge." I can explain:

Do you know how some people are attracted to others because of their physical characteristics of having a certain color hair, or a certain body type, or, with men, having facial hair?

I think that in these cases, there is no thought process that goes with it. It is just part of who they are. Hence, my term of "biological urge."

It's simply something inside of people, and they have no control over it. It just is.

There is a lot of this in the world. My partner is fifteen years younger than I am. He is bisexual. As he explains it, he remembers that in his youth, he always felt a sexual attraction to older women (mostly his teachers) and older men (mostly priests). Nothing ever came of these attractions, as all the adults in his life maintained appropriate relationships with him. But he vividly remembers that the attraction was there, and that it was different with people who were his age or younger than he.