Ariana Grande and Ethan Slater are reveling in their relationship as they enjoy both personal and professional highs following the success of Wicked.

The couple, who first met on the set of the highly anticipated film adaptation, are said to be “inseparable” and deeply committed to building their new life together.

“Ariana and Ethan have written a whole new book together,” a source exclusively tells Us Weekly. Despite being together for more than a year, the pair is “still in the honeymoon phase of pure bliss,” a second insider adds.

The Wicked press tour, which spotlighted their performances as Glinda and Boq, has only deepened their bond. “Ariana is over the moon about Ethan,” the source shares. “They have so much in common, which is something Ari never had with past relationships.”

Grande, 31, and Slater, 32, began their romance in mid-2023, shortly after their respective marriages ended — Grande’s to Dalton Gomez and Slater’s to Lilly Jay. While their relationship initially sparked controversy due to its timing, insiders say the couple’s connection has flourished, with their shared experiences on set helping solidify their bond.

“This is a new dynamic for Ariana,” a second source explains, noting how Grande is taking a different approach this time around. “Ariana used to move really quickly in relationships and has learned to slow down. She’s not rushing to get married again, but she feels content with how things are now.”

Friends of the couple have also been supportive. “They are living in bliss,” the insider says, adding that their circle has embraced their happiness post-Wicked.

Grande and Slater’s romance follows a series of high-profile relationships for the Positions singer, including engagements to Dalton Gomez and Pete Davidson. With Slater, however, Grande is said to have found a connection that feels more balanced and organic, both personally and professionally.

For Slater, best known for his Tony-nominated role in SpongeBob SquarePants: The Broadway Musical, Wicked has opened doors to a broader audience while also serving as the backdrop for his deepening connection with Grande.

As the couple continues to navigate their relationship amid the Wicked buzz, both are prioritizing joy and stability, taking their time to build a future together at their own pace.