Hilary Duff and Matthew Koma are celebrating each other on social media as they mark the third anniversary of their wedding.

On Wednesday, the 35-year-old actress took to Instagram to pay tribute to her husband, with whom she shares two children. She posted a series of photos featuring them together in various settings, including one from their wedding, while some snaps show their moments alongside their kids.

In the caption, Duff expressed her love, appreciation, and gratitude for Koma. She began the post with, “Matthew. I love you so much. Happy 3 years!”

The “Lizzie McGuire” actress jokingly continued that she does not know if the “Spectrum” artist “knew what you were getting into or that you weren’t going to sleep or sit down for the next 5-10 years,” but she believes that her husband is “pretty happy” about the most of it.

Hilary Duff also noted in the same post that their “life is so full,” adding that she is “over the top grateful for the guy that I got to do all this madness with.”

The post has amassed over 248,000 likes and has received hundreds of comments since its emergence on the platform. Most of the commenters appeared to have shared their greetings toward the couple, wishing them a “happy anniversary.”

For his part, Matthew Koma posted two photos from their 2019 wedding on his official Instagram account to mark the relationship milestone. He also wrote a lengthy caption to express his love and adoration for Hilary Duff.

The singer and songwriter, whose real name is Matthew Blair, said they “crushed 3 years” at the beginning of his post. He noted that “anyone who says marriage is easy, hasn’t been married or is raging slightly too high a microdose.”

Koma pointed out in the caption, though, that “the work is the best part” of the marriage, adding that “the beauty truly is in going deeper with someone than you’ve ever been before and navigating an invisible map that only the two of you can trek.” He also noted that “the hard stuff makes the great stuff even greater.”

The “Kisses Back” singer then moved on to thanking Hilary Duff for loving him and all the things she does for him and their family, including “raising our very cute and very unstable three kids.”

At the end of the post, Matthew Koma shared a few quips, joking about giving his wife the seal of approval to leave him for “Harry,” who, according to Entertainment Tonight, is Harry Styles.

While the artist said that he would “totally understand” when Duff leaves him for Harry, he joked about not allowing the “A Cinderella Story” actress “to look at pictures of Matt Healy.”

ET recalled in its report, published Wednesday, that Hilary Duff and Matthew Koma began their relationship in 2017. It also noted that the pair got engaged in 2019 and tied the knot later that year.