That's basically all there is to this story, which of course comes from TMZ and The Shade Room, but I digress. Grande was reportedly working at the studio first, with Sean arriving later. Outside the studio, Sean was reportedly introduced to one of Grande's dogs before the two reportedly left together, which is completely fine and totally nobody's business.
In case your encyclopedic pop culture knowledge is temporarily failing you, it's supposedly worth noting that Sean and Grande—in addition to collaborating on a number of songs—previously dated back in 2014-15. In the video for the title track to her excellent new album Thank U, Next, a Mean Girls-esque sequence includes a note on a photo of Sean in which it's declared that he "could still get it."
Thank U, Next is currently still hanging out in the No. 1 spot on the Billboard 200 album chart ahead of a pair of Oscar winners and something called a "Florida Georgia Line." The album, a quick follow-up to last year's Grammy-winning Sweetener, has also enjoyed widespread critical support.
Sean, meanwhile, last came through with a new solo studio album in 2017. That album, the platinum-certified I Decided, was followed within months by the Metro Boomin collab project Double or Nothing. His 2018 Unfriendly Reminder Tour was canceled, with Sean later suggesting depression and anxiety were contributing factors to that decision.