After more than 22 years of wedded bliss, Freddie Prinze Jr. still thinks wife Sarah Michelle Gellar is all that.

That's why the She's All That star doesn't need any outside guidance on how to keep the spark in his decades-long marriage to the Buffy the Vampire Slayer actress.

"I've never gotten any good advice," Freddie told E! News with a laugh during an exclusive interview. "Most of the marriage advice came from dudes that were divorced that thought we would get divorced, too. They were trying to deal with their own issues."

Besides, the 49-year-old believes advice is "like peanut butter."

"I may think it's delicious, but if you're allergic, you're dead," he explained. "So, it doesn't always apply as well as we would hope. I've gotten a lot of bad advice about marriage."

However, Freddie is especially excited to spend the next decade with Sarah, with whom shares kids Charlotte, 15, and Rocky, 12.

"Dana Carvey said his 50s were the best years of his marriage that he's experienced," Freddie shared of the comedian, who has been married to Paula Zwagerman since 1983. "I'm almost 50, so I'm looking forward to that."

And with his and Sarah's 23rd anniversary coming up in September, the Scooby-Doo alum plans to keep the celebration simple—just like their longtime relationship.

"You don't have to do anything fancy for 23," Freddie quipped. "We're pretty relaxed and private, so we just keep things chill."

The couple first met while filming 1997's I Know What You Did Last Summer. Though Sarah's character was not brought back from the dead for the slasher franchise's upcoming installment, Freddie said his wife did not have FOMO when she learned that he'd be reprising his role of Ray Bronson for the Jennifer Kaytin Robinson-directed sequel. 

"That's just not in Sarah's make-up," he shared. "She was more excited that we were getting to do something that takes really big swings."

Plus, Freddie jokingly noted that Sarah, 48, already got a chance to work with Jennifer on 2022's Do Revenge.

"Sarah and Jen were already friends before this movie," he added. "She knew how much the two of us were committed to this new story."

Also costarring Madelyn Cline, Chase Sui Wonders, Jonah Hauer-King, Tyriq Withers and Sarah Pidgeon, the new I Know What You Did Last Summer hits theaters July 18.

And to see Freddie and Sarah's cutest moments through the years, keep reading...

In January 2019, Sarah Michelle Gellar and Freddie Prinze Jr. had a double date with Shannen Doherty and the actress' then-husband Kurt Iswarienko.

"No mistletoe, no problem," the mom of two wrote on this December 2018 kissy photo.

In 2018, the lovebirds took their Halloween costumes to the next level by dressing up as characters from The Royal Tenenbaums. 

It doesn't matter what these two do, as long as they're together they are having a good time.

"If you were ice cream, you would be my favorite flavor," Gellar captioned this sweet snap in 2018.

"It's the freakin weekend, baby I'm about to have me some fun," Gellar wrote on this cheeky post in March of 2018.

In December 2017, the cute couple had some fun at an engagement party thanks to photo booth props.

Gellar channeled her inner Molly Ringwald with her Andie costume from Pretty in Pink in 2017 while her husband nailed it as Duckie (played by Jon Cryer) from the film.

"The only time I don't mind giving up #independence lol," Gellar joked to her followers on the 4th of July in 2017.

The couple that snaps selfies together, stays together! 

Gellar's birthday message in 2017 to her husband was just the cutest. "Happy birthday @realfreddieprinze," she wrote, "'the happiest people don't have the best of everything, they just make the best of everything.'"

In January 2017, the pair celebrated National Spouse Day by taking this pic.

"Someone let me know who that red head was seen trick or treating with @realfreddieprinze ..." Gellar joked on Instagram while celebrating Halloween in 2016.

The Scooby-Doo stars soaked up the last bits of summer together in 2016.

The Buffy the Vampire Slayer alum couldn't help but gush about her husband after his cookbook came out.

"Finally out like the adults we are...to see #fantasticalbeastsandwheretofindthem," Gellar revealed while out on a date night in November 2016.

In October 2015, the duo posed with wrestling belts and tried to out muscle each other.

The bond between Gellar, Prinze and Selma Blair has lasted for three decades and we can't wait to see what they do during the next three.

The Back to the Kitchen author and his wife are often found in the kitchen whipping up delicious meals for their family. 

In this adorable throwback, Gellar revealed that the couple took this photo in Hawaii after they learned they were expecting their daughter Charlotte!

These two have had a lot of fun in their relationship, and the Foodstirs creator's "Dirty 30" birthday party was no exception. 

This throwback snap, the happy couple celebrated their first Thanksgiving together.

The I Know What You Did Last Summer costars looked like babies in this photo from a vacation way back before they had kids together.

We just love these two.

If you've ever wanted to know what Prinze and Gellar looked like when celebrating their first holiday together, then look no further!

How happy do these two lovebirds look in this sweet photo from their honeymoon back in 2002?!

Clearly, this pair was a match made in smiley heaven.

"I love you not only for what you are, but for what I am when I am with you," Gellar shared on one of her past wedding anniversaries. "I love you not only for what you have made of yourself, but for what you are making of me."

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