Questions: Flirting

I'm half hispanic myself and I feel that Hispanic women are overrated. They look like men after one kid. People love to say white girls have flat butts but nobody tops Hispanic women it looks like they have a long back.

So there's a guy at my kickboxing class that I partnered up with about two months ago when I was pretty new to it. He was very nice and helpful and we talked while we were partnered together, like I asked about his career etc. And we generally got on well.
Since that I have said hello and bye to him when we are both at training and I smile at his across the room etc but I haven't had a chance to partner him again or chat properly because I am pretty shy and I think he seems to be too.
Anyway I haven't seen him at training for a couple of weeks but he sent me a friend request on Facebook a couple of days ago (I obviously accepted) and I guess I'm wondering if it means anything? I know it's a silly question, go easy on me, I don't know much about guys but I obviously do fancy him and I'm sure he's seen me checking him out in class 😅😯 but yea just interested if guys will randomly friend girls they know or if this might mean I have a chance!