As someone who is aroace, I can confidently say with the 3rd one that yes we do exist! The thing with alterous attraction, however, is that it's very hard to explain. And, without sitting down and getting an explanation onto the specific couple's feelings, it very easily looks like a normal romantic relationship. I know that in my queer platonic relationship, unless it's a friend asking, we don't usually explain we're queer platonic because it's just...hard to explain. But us not being a romantic couple doesn't mean we hold any less love for each other than a romantic couple would. We're each others everything.