Grey's Anatomy Shocker: Sophia Bush Was 'Just As Surprised' By That Finale Cliffhanger As You — What's Next?

A lot went down on the Season 22 finale of "Grey's Anatomy," and we're not just talking about that bridge. (Sorry, too soon?)

The season's jam-packed final hour said goodbye to Kevin McKidd and Kim Raver as series regulars, while sending several characters — including Bailey, Jo, and Kwan — on new career paths, for better or worse. We also saw Meredith and Nick take a long-awaited (and long-overdue) next step in their relationship, providing a brief moment of joy in the midst of so much chaos.

But first, let's talk about the finale's big romantic cliffhanger: After giving the situation a lot of thought, Toni finally decided to stay with Amelia, surprising her at home with a declaration of love... only to discover Cass (guest star Sophia Bush) in Amelia's living room, and we don't need to paint you a picture of what had just transpired.

"Every time I get a script, I'm wondering where the big gotcha moment is going to be, and let me tell you, I truly did not see it coming for myself," Bush tells TVLine of the twist ending. "Like, I flipped to the page and [screamed]. I immediately texting Kim [Raver] and Caterina [Scorsone]. We all wound up in this storyline together, so I was like, 'You guys, did anyone know?' It was nuts."

Good question! Cass showed up at Grey Sloan Memorial to assist with victims of the bridge collapse, including Nick, which is when she and Amelia first crossed paths. But outside of a quick (and tense) conversation with Meredith, we didn't see any more interactions between Cass and Amelia — until the big one.

"I'm sure you were just as surprised as I was," Sophia Bush tells TVLine, admitting that she also mentally backtracked to her scene with Meredith and Amelia for any missed clues. "When Meredith beelines down the hallway and leaves the two of us, we're clearly having a medical conversation. So in my brain, I'm just like, what happened? Where did that go? Did Amelia say, 'Text me if there's any updates?' Is that how we exchanged information? Did we wind up at the bar after work because everyone needed to blow off some steam, and that's where it happened? It had to have been something like that, right? These are two women we're talking about, so there has to be some emotional tether first."

Ultimately, Bush is glad we didn't catch any early sparks between Cass and Amelia, as it might have lessened the surprise of Toni's discovery. "I think it made the cliffhanger such a good moment, because if you'd seen us at the bar, you would have been like, 'Oh, this is what's happening now,'" she says.

Now for another big question: Was this just a one-time thing that Toni can overlook, or might Amelia and Cass actually have a future together? No stranger to TV love triangles, Sophia Bush is wisely refusing to take sides. 

"At the end of the day, you always want the story to be correct, so it's tough," Bush tells TVLine. "I really like all of the actors involved. I'm already so upset about losing Kim and Kevin, I can't imagine making the suggestion that we lose another character. But also, if we don't, do we lose mine? I don't know, it's too hard! It's like 'The Hunger Games.'"

To be fair, Bush isn't even sure that Cass is looking for a serious relationship, as the parameters of her open marriage with David are fuzzy to say the least.

"I've spent so much more time with all of the other characters on this show than with David Beckman," Bush says with a laugh. "I barely know that man. The way the writers explained it to me was that they've been together for a long time, and they love each other, but they're not sure they're in love anymore. They want to maintain their family, but they also want to make space for curiosity and desire and exploration, and they do that in a way that's healthy and safe and communicated. We just haven't spent a lot of time with David on the show, so I really have no idea what their dynamic is. ... And I don't know if this will eventually lead to Cass wanting a home life that looks different than the one that she has. We haven't gotten quite that far. But I do think it's a really interesting question."

Now that we've gotten Amelia's relationship drama out of the way, let's talk about the finale's dual farewell to Kevin McKidd and Kim Raver as Owen and Teddy. As Teddy feared, Owen was indeed driving on the bridge when it collapsed, but he quickly swam his way to safety and immediately started treating his fellow victims. 

When Owen and Teddy finally reunited at the hospital, their stupid fight about Paris was the last thing on either of their minds. "I choose us," she told him, adding that she's lived all over the world but Owen is the only thing that makes her feel like home. But Owen had an announcement of his own to make: Teddy is taking the job in Paris... and he and the kids are going with her!

As the couple took one last look at their home away from home for the past 10+ seasons, viewers were treated to emotional montages of their journeys on the show, both as individual characters and as a couple. (Don't be strangers, you two!)

Congratulations are (finally) in order for Nick and Meredith. Following Nick's latest brush with death — he was also on the collapsed bridge, as luck would have it — Meredith was inspired to make their arrangement more official.

"Me not being married to you isn't protecting me from anything," she told him after he woke up from his surgery. "I love you and I love our life together, and I don't want my fear to get in the way of that anymore."

That said, don't expect a traditional wedding, with Meredith already making it clear that there are to be "no flowers or white dresses or poems." And are you really surprised? She married her last husband on a Post-it note for crying out loud. Meredith Grey has never met a convention she couldn't buck.

Now for a breakdown of the other must-discuss moments from the Season 22 finale of "Grey's Anatomy":

* Bailey has long been fed up with bureaucratic nonsense in the medical community, and now she's doing something about it. Eyeing a seat at the table, she revealed to Ben that she's going to pursue a master's degree in public health.

* Despite being a huge asset with the overflow of patients from the bridge collapse, Kwan is very much not getting rehired at Grey Sloan Memorial. He even pleaded his case to Richard at the end of the hour, only to be told, "What you did today doesn't change what you did before. If I see you again, I'm calling security."

* We already knew that Jo wasn't sure if she wanted to be an OBGYN anymore, but as she confessed to Link in the finale, she's not even sure if she wants a career in medicine at all. Meanwhile, Link experienced more pain during surgery, which he tried to pass off as a headache while popping more pain meds. 

* After dismissing her night with Lucas as a "one-time mistake," Simone cozied back up to Wes, who said that she's one of the few bright spots in his life at the moment. Lucas also made a formal play for Simone, inviting her for a drink after thanking her for taking such good care of Katie, but she already had dinner plans with Wes. And so, the triangle continues.

* And in happier, less-complicated relationship news, things are progressing quickly between Jules and Winston, both of whom said they would want be the other's emergency contact should a crisis ever arise. (And on this show, you know it's only a matter of time!)

So, what did you think of the "Grey's" finale? Were you satisfied with Teddy and Owen's exits? Are you glad Meredith and Nick are finally getting married? Did you see that Amelia/Cass twist coming? And what about, you know, everything else? Weigh in via the polls below, then drop a comment with your thoughts on all things Season 22.