Adam Brody and Leighton Meester
Henry S. Dziekan III/Wireimage
got her own real-life happy ending.
The actress, who shot to fame playing Gossip Girl
's Upper East Side teen queen Blair Waldorf, married boyfriend
Adam Brody in a secret wedding
– and she's clearly basking in marital bliss.
"She's very happy," a source tells PEOPLE.
"She has a lovely ring. She likes [it] a lot," the insider says about the new bride, who was eager to show off her latest accessory, and adds that the "under-wraps wedding" was "super intimate" and "super recently – a couple weeks ago."
Speculation that the newlyweds were celebrating their secret marriage south of the border began when Meester and Brody were spotted at the St. Regis Punta Mita Resort last week. However, Meester was there for work.
"She was in Mexico shooting," the source says. "Adam was with her, but it wasn't their honeymoon. It was strictly a professional trip."
That didn't stop Meester from having some fun, though. The actress, 27, enjoyed precious downtime with her new husband, 34.
"They weren't holding hands or engaged in over-the-top PDA. I didn't even see them kiss," a hotel guest who dined near the couple tells PEOPLE. "They seemed relaxed, like any other couple would be, having a conversation, taking in the sunset and being completely at ease with each other. They left right as the sun set, headed toward the beach with camera in hand."
On Wednesday, Brody himself seemingly acknowledged his recent nuptials
to paps while stepping out in Hollywood.
costars began dating
in early 2013 and got engaged