Kubo, the creator of the show, is a bit vague about it and honestly, it all boils down if you think of the story as queerbaiting or just subtext. We aren't toddlers, things don't need to be in our face for us to understand what it actually means. After some light googling, I found some quotes worth reading.
"The creators behind the beloved figure...... 1 reply
no they're literally together the animators just made it as subtle as possible like exchanging rings and that hug/kiss near the end are so obvious queercoding without plainly stating the status of their relationship 1 reply
I found this on Google.
"Yuri unwittingly dragged him through the Russian tradition of getting engaged. They went to a jewelry store and bought wedding rings - it says so on the receipt. They stood in front of a cathedral and choir and exchanged the rings while having a heart-to-heart. Of course he THINKS they’re engaged.
But they aren’t. Yur...... 2 reply
Hmm I thought they were officially together but not married....
FUCKING QUEERBAIT...................... THEY KISS EACH OTHER THEY HAVE RINGS HOW ARENT THEY SUPPOSED TO BE TOGETHER?????.................. 2 reply