Uncle Jesse is officially off the market — but not with Aunt Becky. John Stamos and his girlfriend, Caitlin McHugh, are engaged — and we couldn't be happier for the couple!

On Sunday, Oct. 22, the 54-year-old confirmed the news with a sweet Instagram photo of an adorable cartoon drawing of the two. He captioned the pic, "I asked… she said yes!… And we lived happily ever after." Our hearts are melted…

According to a statement from the actor's rep given to Today, the proposal was super romantic (we're not surprised)! At Disneyland, the Full House star apparently cut together a film with sweet moments from Disney and Pixar animation films, ending with Sebastian from "The Little Mermaid," which encouraged him to "just ask the girl."

John and 31-year-old Caitlin — he's 23 years her senior! — have been dating since March 2016, so they've been together for nearly two years even though the couple has kept their romance very private. Prior to dating Caitlin, John was married to actress Rebecca Romijn from 1998 until 2005.

During an appearance on The View last year, John gushed about Caitlin. "This girl I'm dating… she loves this song, "Disney Girls." So I put on FaceTime the other day [while he was in front of a crowd]. I thought I could get away with [it] but people were tweeting, 'Who are you FaceTiming?!'" he said during the talk show. Now his Disney proposal makes sense…

In a previous interview, Caitlin raved about over how happy she is with John. "I'm very happy, he's super supportive, and I really couldn't ask for anything better," she said at the time. "We like to keep our lives private because we've seen what relationships in the public eye can be like and we just like our privacy."

John is also super supportive of her career. "He's very encouraging of anything I want to do career-wise," Caitlin explained. "I really appreciate it a lot. You don't get that with every guy." We can't wait for the big day!