Robert Downey Jr. and wife Susan recreate wedding photo as they celebrate 18 years of marriage

Robert Downey Jr. and his wife Susan have recreated their sweet wedding photos to celebrate almost two decades of marriage.

The Oppenheimer actor posted a photo of the two love birds holding a bouquet of daisies, with the caption: "18 years, love still in bloom!!"

LOVE IS NOT DEAD, PEOPLE!!

The photo melted the hearts of many, as one fan wrote: "The only couple in Hollywood who are still loyal to each other."

Another said: "Tony with his real life Pepper Potts."

A third commented: "The only couple in Hollywood who are still loyal to each other."

Even his Avengers costar, Jeremy Renner, left the couple a sweet message in the comment section.

The Hawkeye actor said: "These are the best photos Robert! Love you both !!!!"

The pair met on the set of the 2003's Gothika when Robert was starring alongside Halle Berry, and Susan was serving as a producer with her production company Silver Pictures at the time.

Initially, Susan wasn't particularly fond of dating a colleague; however, the actor eventually grew on her.

She first noted how Robert would bring his 'own packets of oatmeal to have at lunch' and do all these 'yoga moves' on set.

"We were up in Montreal prepping for Gothika, and we had lunch with the director and Halle Berry," Susan told The Hollywood Reporter of her meeting Robert.

"Everybody else ordered Japanese, but Robert told us how oatmeal was the 'superfood.' He brought his own packets of oatmeal to have at lunch. And he had this box of various herbs and stuff. And then he started doing these yoga moves. I mean, he was interesting but weird."

Within a few months of dating, the two became engaged and wed in August 2005 in a Jewish ceremony at Amagansett, New York.

Robert and Susan share two children and have even launched their own production company, Team Downey, which has produced The Judge, Dolittle and Sherlock Holmes 3.

But what is the secret ingredient to their long, successful marriage?

While speaking to Extra TV, the producer said: "I think you just have to enjoy each other, but it's fun when things are working, and it's fun when you're happy with each other, so you get over the bumps quickly."

Robert and Susan, here's to another 18 years!