Do you have a GS crush/crushes?

Re: Do you have a GS crush/crushes?

Let’s start a pool. PCG has me at 19. Any other takers?

I actually have no idea what a preposition actually is. I know it is somehow related to grammar “stuffs” so I put that out there as a possible reason for my age misconception. Given the number of memes, jokes, and 1337 (leet) speak references I throw around, you would think the number would be lower, rather than higher.