Entertainment Movies Kristen Stewart's Girlfriend Wishes Her a Happy 31st Birthday: 'You Knock My Socks Off' Stewart was first romantically linked to the screenwriter in August 2019 By Glenn Garner Glenn Garner Instagram Twitter Glenn Garner is a Writer/Reporter who works heavily with PEOPLE's Movies and TV verticals. Since graduating from Northern Arizona University with a dual major in journalism and photography, he got his professional start at OUT Magazine, The Advocate and Teen Vogue, and he's since consistently kept his finger on the pulse of the LGBTQ community. His first book The Guncle Guide was released in 2020 and was featured on Katie Couric's list of 100 recommended books of the year. People Editorial Guidelines Published on April 10, 2021 03:30 PM Share Tweet Pin Email Photo: Dylan Meyer/Instagram Kristen Stewart is getting some birthday love from girlfriend Dylan Meyer. Meyer shared a sweet message to Stewart on Friday, as the actress celebrated her 31st birthday. "Life sure is sweeter with this cute little family. Happy birthday, kiddo. You knock my socks off," the screenwriter captioned a black-and-white Instagram photo of Stewart with their dog. The pair were first romantically linked in August 2019, six years after they met on the set of a movie. Stewart said a few months into their relationship that she "can't f--- wait" to propose. Kristen Stewart Wear's Princess Diana's Famous Engagement Ring in New Photo from Spencer Movie "I wanna be somewhat reasonable about it, but I think good things happen fast," she said on Howard Stern's SiriusXM radio show that November. "I can't say right now because she'll find out. I have a couple plans that are just the coolest things to do that I don't think … I think it's pretty undeniable." Dylan Meyer/Instagram Stewart, who doesn't have any public social media accounts of her own, has made a few appearances on Meyer's Instagram. She even took over her girlfriend's profile in September to urge fans to "vote for your f--- lives." Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday. In an interview last October, while discussing how she's juggled her personal life despite massive fame, the actress admitted to being "cagey" about her relationships. "I felt like maybe there were things that have hurt people I've been with. Not because I felt ashamed of being openly gay but because I didn't like giving myself to the public, in a way. It felt like such thievery," she said during an InStyle interview with her Happiest Season director, Clea DuVall. RELATED VIDEO: Kristen Stewart Showed Off Her Funny Side in Charlie's Angels "This was a period of time when I was sort of cagey," Stewart added. "Even in my previous relationships, which were straight, we did everything we could not to be photographed doing things — things that would become not ours. So I think the added pressure of representing a group of people, of representing queerness, wasn't something I understood then. Only now can I see it."