On Instagram, Arjo wrote, "Starting 31 with one of life's biggest blessings. I love you sooooo much, bubba. Thank you for everything!"
Meanwhile, Maine shared a throwback photo of herself with Arjo and simply wrote, "Happy birthday."
Maine's fans are speculating that the couple is celebrating Arjo's birthday in Siargao. In a fan account followed by the Eat Bulaga host, several posts of the real-life lovebirds were shared that showed them gamely posing for photos with fans. In another post, Arjo and Maine were seen being escorted by uniformed police as throngs of fans aimed to get a glimpse of the celebrity power couple.
Arjo and Maine are due to celebrate their third anniversary in December. The couple made headlines in 2019 when Maine confirmed she was dating Arjo amid the success she's received with her onscreen team up with Alden Richards. Addressing AlDub fans, Maine wrote, "Sadly, I cannot stay as Yaya Dub forever. This is Maine, the real me. And this is real life. And I cannot go on with my life behind a fictional character."