^^DID they actually break up? If so, that's unfortunate. I thought they just were not publicly together anymore and wanted to keep their relationship strictly private. They seemed like they were quite serious with each other, but a break-up can happen for any reason, even if you're serious. That's how life is sometimes, I suppose.
To me the weirdest thing about this is that this is the only Celeste art on this site at the time of writing. This is the only Celeste ANYTHING on the site in fact. You'd think that there'd be more than one piece of Madeline x Badeline art around but no.