updated 04/12/2013 AT 2:00 PM ET
•originally published 04/12/2013 AT 4:00 PM ET
Time for a fiesta!
“They celebrated with Mexican food, beers and margaritas. Kristen was in a great mood,” an onlooker says of the pair. “She and Rob seemed great too. They were a bit affectionate, but mostly mingled separately.”
After dinner, the group – which included Spring Breakers star Ashley Benson – headed to No Vacancy at Hotel Juniper in Hollywood for drinks.
Stewart, who smiled “all night,” says a source, adds that “she and Rob looked happy together. They seem to be back to normal.”
Next stop for the couple: The Coachella Music Festival, for which Stewart has rented a house in nearly Palm Springs.