Based on Palvin's first anniversary Instagram on June 16, it's clear that they first began dating in late spring of 2018. The couple confirmed in a cover interview for W Magazine that after initially meeting at a party, Sprouse oh so smoothly slid into her Instagram DMs.

“She followed me, so I was like, I guess I’ll give her something," Sprouse told the magazine. “I was like, ‘Hey, I don’t know if you’re in New York for very long, but we should hang out if you want to. Here’s my number.’"

As it turns out, Palvin didn't message him back for a whole six months. However, she told People magazine that she knew she wanted to be exclusive with him from "the first minute" they met.

As for why she left him on read for so long, Palvin told Vogue that she just "wasn't in a good mindset" at the time, even though she knew there was potential for romance there.

Once the timing felt right, she finally messaged him back. However, in those six months while Sprouse was awaiting his response, he booked a movie and moved to China for filming.

One day, on the shoot, his manager asked him: "Dylan, is there anything you wish you had wrapped up before you left?" Sprouse admitted to W Magazine that Palvin immediately came to mind, and 10 minutes later, she texted him. How's that for serendipitous?

Here's the best part. Palvin actually packed up and traveled all the way to China that summer to visit him during the shoot.

While the couple hadn't publicly announced their relationship quite yet, speculation of their romance was spurred on by a now-deleted Instagram of them hanging out together at the World Cup in Russia. A series of adorable and affectionate pics and videos of them smiling ear to ear in the stands and sipping on beer were shared shortly thereafter.

Is it even a real relationship if you don't Instagram about it? Palvin made shippers' week — nay, year — when she shared a flirty IG post on August 8 for Sprouse's 26th bday, which seemingly confirmed their romance.

Under a selfie of them, Palvin wrote: "Even though it's your birthday I feel I just got the biggest present of all. Happy birthday Boss Baby."

BTW — while the timeline on this is unclear — Palvin shared in an interview with British Vogue that their first kiss happened after she devoured most of Sprouse's burrito during a hang sesh, and she got tired of waiting for him to make a move.

"It was 3 AM and I had to take control because you wouldn't kiss me!" she said. "We'd been talking and texting for four months and I was like, 'Are you going to kiss me or what?'"

Mere weeks after they went IG official, Sprouse and Palvin were seen gallivanting around her native country of Hungary. During their travels, they apparently visited a castle in Budapest, as well as attended The Sziget Festival — one of the largest music fests in Europe.

In a later interview, Sprouse told W Magazine that he made an effort to learn some Hungarian while on the trip so that he could try and communicate more effectively with Palvin's fam. I mean, how cute is that? Speaking of her family, the couple crossed a major milestone on the trip because this is when he met her parents.

Around the same time of this European adventure, Palvin shared a photo of Sprouse on her IG Story accompanied by an emoji of a girl surrounded by hearts. So, even though they still had yet to officially comment on the relationship at this point, it was pretty clear that these two lovebirds were in deep.

What better time or place to make your red carpet debut than New York Fashion Week? Palvin and Sprouse were seen arm in arm and looking smitten as ever at numerous events throughout the week, including the exhibit and book launch of Angels by Russell James. And can we please talk about their posh AF coordinating khaki and cream ensembles at the BOSS Womenswear & Menswear show?

Toward the end of the festivities, they were photographed at the annual Harper's Bazaar ICONS Party looking particularly cozy — at one point, Palvin even gave her boo a kiss on the cheek.

Sprouse and Palvin announced their mutual obsession with anime to the world when they attended Heidi Klum's Halloween party — Sprouse went as Future Trunks from Dragon Ball Z, while Palvin dressed up as Gaara from Naruto.

Palvin once told W magazine that this shared appreciation for anime actually brought them closer.

"In high school, I had a friend who would watch 'Naruto' with me, but that faded away," she explained in the interview "When [Dylan] came into my life, I was like, I'm home, baby."

When Palvin walked the Victoria's Secret runway for the first time, Sprouse was obviously there in the audience to support her. Not only did he attend, but he was seen standing up from his seat and legit clutching his heart with his hand as she strutted down the catwalk. And did I mention that he brought her a Shake Shack feast after the show was over? Now that's #BoyfriendGoals.

Vogue Australia's video interview with Sprouse and Palvin, which involved following them around on a day off, offered lots of endearing tidbits about their relationship. For one, they enjoy picnic lunches and pumpkin carving, and their typical date night apparently entails going to play pinball at a dive bar (Palvin won, for the record). Don't these two just make your heart sparkle? *Sigh.*

Palvin and Sprouse took their relationship to a whole new level of serious when they moved in together in New York at the start of 2019. Um, can we please talk about that view?

Up until this point, Palvin hadn't gotten the chance to meet Sprouse's twin brother Cole because he was a "very busy guy" shooting Riverdale. Thankfully, Sprouse finally had the opportunity to introduce them at the Vanity Fair Oscars afterparty.

When Palvin was officially made a Victoria's Secret Angel in March of 2019, Sprouse congratulated her via Instagram with a (now-deleted) post that included a silly pic of them together, and a caption that read, "Here's to the people who tried to drag her down, cheers!"

Not only that, but Sprouse planned a surprise party to celebrate Palvin finally getting her Angel wings. Palvin admitted on Insta that she "only cried" for a solid two minutes after being greeted by loved ones at the bash.

On their first anniversary, Palvin posted an IG tribute to their relationship with a slideshow of their cutest pics together, which included both selfies and professional shots.

Sprouse, meanwhile, shared a (now-deleted) photo of them with the caption "One whole year with smoogie. From China to NYC to the rest of the world. I'll save the sappiness for private, but my life is better now."

Once again, Palvin and Sprouse positively crushed it with their costumes for Heidi Klum's annual Halloween bash — and unsurprisingly, they went with an anime theme for the second time. This time, they dressed up as characters from the same film — Princess Mononoke — with Palvin as San and Sprouse as Ashitaka.

In an exclusive interview with Elite Daily, Sprouse opened up about quarantine life with Palvin — and TBH, it sounds like they have a pretty ideal situation.

"We've been playing a lot of video games, watching a lot of television and film, and just enjoying the time together, actually," he explained.

In fact, Sprouse noted that it's been nice to hunker down with his girlfriend while social distancing because life for them is normally so chaotic and entails "flying all over the place."

He also revealed one other super relatable detail about their quality time together: it's included a lot of Animal Crossing.

To show just how proud she is of Sprouse publishing his first-ever comic book, Palvin posted a hilarious photo series on Instagram with a pretty heartwarming caption. She wrote:

"It was just a year ago when you couldn’t even brush ur teeth alone and now look at you ... It is so inspiring to watch you achieve your dreams/goals!"

Palvin also included a link in her IG bio to preorder Suneater, which was inspired by folk stories told to Sprouse by his Scandinavian-American grandparents. Fun fact: Sprouse actually created a character that's based on Palvin. Is that romantic or what?