The "Shape of You" singer and his finacée possible wife, Cherry Seaborn, spent their Tuesday night at Giorgio Baldi in West Hollywood with Cox and her beau, Johnny McDaid.
Sheeran has been buddies with Cox and her beau for years — McDaid has even produced and written tracks for the singer in the past.
After a four-hour dinner (yes, four hours), the foursome headed into the same black SUV and all seemed ready to continue the party — notice the wine bottle in Sheeran's hand.
Also, worth noting ... Ed Sheeran is still sporting what looks like a wedding band on his ring finger.
Although he's talked about the ring in the past, stating it's just his engagement ring, an interview this week has fans questioning his status.
After being asked if he's tied the knot with Cherry, Sheeran didn't give a straight answer, instead gesturing to his ring and talking past tense about a ceremony.
“I don’t like large groups of people at the best of times so… I never wanted a wedding that was lots of people,” he told ET.
So, if there was a secret wedding, a four-hour dinner catching up with good friends makes sense ... we're just sayin'.