Have mercy — it's 2017 and people everywhere, of all ages, are still crushing on timeless cutie John Stamos. The Fuller House star has undeniably aged like fine wine and it hasn't gone unnoticed by all of his die-hard fans. Ever since John returned to TV with starring roles on Grandfathered and the Full House spin-off, Fuller House, many viewers have become more and more interested in the hunky actor's personal life — and, particularly, his love life — and have asked, is John married?

The 54-year-old literally doesn't age — that much the world can unanimously agree on. But when it comes to the wisdom he's obtained over the years, the on-screen Uncle Jesse is undoubtedly full of insight, especially when it comes to love, children, and relationships. Scroll down to read fascinating facts about John!

Is John Stamos married?

No, but he will be soon! After dating his girlfriend Caitlin McHugh, a 31-year-old actress, for more than a year, John popped the question in October 2017. "I asked… she said yes!… And we lived happily ever after," John said of his romantic Disneyland proposal. Caitlin previously gushed of her soon-to-be hubby, "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," Caitlin previously told People. "We're very happy together and we hope to be so for a long time."

John was previously married to actress and model Rebecca Romijn from 1998 until 2005, when the couple divorced. For a while, fans thought that John was married to Lori Loughlin because they are TV husband and wife, but they're not a couple. Though he has previously revealed that he and his co-star Lori once dated a long time ago, he has since admitted that their timing has never been right.

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John and Rebecca.

"[We] went on a date to Disneyland before, you know, before we were both married. In real life, when we were 18, 19 years old," he once revealed on Huff Post Live. "We did have some off timing, but no disrespect to her family and her husband now, I would say that she could be the one that got away."

Does John Stamos have kids?

Not yet, but he and his fianceé Caitlin are now expecting! "I’ll be a fun dad. I’ve been practicing for a long time. I’ve done every schtick you can do with a baby on TV… all the bits and jokes and diaper gags. I’ll probably just do all that stuff," John said after announcing the news on Wednesday, Dec. 13. In a previous interview, John gushed he couldn't wait to become a first-time dad. "My ovaries are rattling," he joked in 2015. "Do men have ovaries? They're jingling. I can hear them jingling now."

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John and Caitlin.

Who has John Stamos dated?

John has a pretty well-documented dating history. The star has allegedly dated Amy Poehler, Renée Zellweger, Paula Abdul, Demi Moore, Denise Richards, and more lucky ladies over the years.

Who are John Stamos' parents?

John's parents, William "Bill" Johnson Stamos and Loretta Phillips Stamos, have sadly both passed away. His dad Bill died in 1998, Loretta passed years later in 2014.

Are John Stamos and Josh Peck related?

No, the former co-stars are not related in real life. People often wonder if they are family members because they look a lot alike and played a father and son on Grandfathered.

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I like holding babies.

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What color are John Stamos' eyes?

America's favorite sitcom heartthrob has blue eyes. Some often speculate that he has worn brown contacts in the past for acting jobs, but it's clear he's a blue-eyed boy.

Can John Stamos sing?

Yes! Aside from his acting passion, John has been very vocal about his love for music. He has sang on Full House, on Glee, and even plays the drums for the The Beach Boys, a band with which he has long had a relationship, dating back to 1985.