Cristina (Sandra Oh) and Owen (Kevin McKidd) have had one of the most turbulent, dramatic relationships on Grey’s Anatomy. Between Owen’s PTSD and their disagreement on whether or not to have children, we often wonder if this couple will make it. But although they’ve had a tough time lately, it seems like Cristina and Owen might finally be back on their feet.

Since Sandra is leaving Grey's after the upcoming Season 10, we wanted to take a moment to celebrate Crowen. Here are their Top 5 moments:

Cristina’s icicle mishap (Season 5, Episode 1: “Dream a Little Dream of Me”): The first time Cristina meets Owen, she’s got an icicle stuck in her stomach — oops. Good thing Owen’s specialty is trauma! He saves her, and does what any normal doctor would do: makes out with her. Oh, and then he tells her she’d be good as a trauma surgeon — little does he know compliments on her surgical skills are the number one fastest way to get to Cristina’s heart.

Owen shows Cristina the air vents (Season 5, Episode 10: “All By Myself”): Owen introduces Cristina to the air vents, which become a meeting place for them and sometimes even the other doctors long afterwards — especially when they have to discuss something serious. He first takes Cristina there when she’s having a particularly bad (and rare) fight with Meredith, and the air vent helps her clear her head.

Drunken first date (Season 5, Episode 11: “Sympathy for the Devil”): Owen and Cristina finally make a plan to have a first date, but Owen stands her up. Later, he shows up drunk — oops? Not really off to the best start. But Cristina finds it endearing when Owen explains that it was because he was so nervous for their date. OK, that’s kinda sweet.

Credit: ABC

Owen gives Cristina a cardio god (Season 6, Episode 9: “New History”): Diamonds may be a girl’s best friend, but they are certainly not Cristina’s, and Owen knows exactly how to shop for her. He proves it when he offers a job to old military buddy Teddy Altman (Kim Raver), who he presents to Cristina as her brand new very own cardio god. There’s no gift like the gift of learning in the form of a brilliant surgeon, right? Cristina definitely thinks so.

Cristina and Owen’s wedding (Season 7, Episode 1: “With You I’m Born Again”): The first time Cristina attempted a wedding, it was totally not her thing — she’s not really the fancy wedding type, and she prefers to keep her eyebrows (as much as Burke’s mother may have disagreed). So this time, Cristina does it right, and she’s lucky enough to marry someone who knows her well enough to let her. She forgoes the big poofy dress and marries Owen, surrounded by their friends.

Did we miss your favorite Cristina/Owen moment? Let us know in the comments!

Catch the Grey’s Anatomy Season 10 premiere on Thursday, September 26, 2013, at 10 p.m. ET/PT on ABC.