What does one even do about a qpr crush?

First of all, I'm really sorry I wasn't around to respond. The group feature on this site doesn't work too well.

I absolutely feel you. Speaking as someone who's been in a queerplatonic relationship for several years now, it's definitely not something most people understand. It's rare for me to tell people I'm in one at all, and I'm very used to being on the defensive about most parts of my identity except for in a few select spaces.

This doesn't mean it's not possible to do something about a queerplatonic crush ("squish" is one word I've heard for it, but that can also be applied to a general desire to get close to someone platonically. I think I once saw a specific term but I forgot it). I cannot tell you with certainty how to do it in your situation. My queerplatonic partner and I got to know each other online initially, which is a bit more of an open space to explore and openly admit to things like this. I can tell you a bit about how I went about it before I confessed my feelings.

I think in order to do anything about a squish, it's a good idea to test the waters as to how the person/people in question feel about that term. "Soft launching" conversations about aromanticism (if that's even involved) and trying to ensure that they know what the definition of queerplatonic even is. It's oftentimes easier to assess how a person would react, by noticing what they make of terms like this. 

It can be difficult to define what a queerplatonic relationship is on the fly. It is, after all, intentionally a vague term, as it's meant to apply to a wide range of relationships. I usually say that it's a type relationship that doesn't rely on pre-conceived notions about what a romantic relationship or a friendship should be. Something made to apply to relationships that push the boundaries slightly, and allows people to create their own version of a relationship that doesn't already have rigid expectations and definitions. All of this sounds quite spacey, so it can depend on the person exactly how I describe and how much I care to describe what it means to me specifically. Sometimes you'll be lucky and find someone who desires that sort of thing too.

If all of this is not quite in the cards, simply trying to get close to a person in terms of friendship can likely satisfy some of the feelings. There are times where friends perhaps end up behaving a bit like queerplatonic partners, even if that term is never used for them. When you're close enough to a person, it's oftentimes also easier to have conversations about levels of commitment like that.

I really do wish you the best. These things can be difficult, especially in a highly amatonormative society. If you ever need support, reassurance or similar, there are plenty of online communities out there who can help provide it (myself included).