It's easy to see why so many fans adore Sebastian Stan. The actor, who's best known for playing Bucky Barnes in the Avengers films, has been winning people's hearts with his humor and charm. But if there's one thing that the actor has in common with his character, it's the fact that he tends to keep his romantic affairs out of the spotlight.
But could there still be clues pointing to a possible relationship? Or is Sebastian currently single? Let's first take a look at the actor's romantic history.
Sebastian dated Leighton Meester from 2008 to 2010.
The actors first met while they were working together on the set of Gossip Girl in 2008. During their time together, they went on a couples' retreat in Jamaica with fellow Gossip Girl co-stars Jessica Szohr and Ed Westwick. And in 2009, Leighton gushed about Sebastian being her "best friend." However, the pair called it quits in April of 2010.
As the news got out, one source revealed: "They are still friends. It was amicable. They still talk all the time."
He had a fling with 'Glee's' Dianna Agron in 2011.
According to reports, they started dating in May, shortly after Dianna broke up with her ex-boyfriend and former co-star, Alex Pettyfer. However, it was confirmed by two sources that the couple had broken up in December due to concerns about cheating.
One source said: "She was always worried that he was cheating on her while he was away filming. But he never would!"
Sebastian dated Jennifer Morrison from 2012 to 2013.
So much for their happy ending. The former Once Upon a Time co-stars began dating in the summer of 2012 and they mostly kept their relationship low-key. But unfortunately, it only lasted a year. By November of 2013, it was reported that the pair went their separate ways.
An insider explained: "They broke up at least four months ago. They have gone their separate ways — no bad blood."
Sebastian moved on to Margarita Levieva in 2014.
He met the former Revenge actress in 2009 while they were working together on the film Spread. However, they didn't start dating until five years later.
One source explained, "They've been friends for a while. They're having fun together and seeing where it goes. They're both very art-minded and thoughtful people."
They were spotted showing PDA on a few occasions, and Sebastian even shared photos of her on social media, including this adorable picture of them together on his Instagram. But aside from this, there actually aren't too many details about their relationship.
Outlets reported that they broke up in 2016, but it's unclear why. Since Sebastian and Margarita never commented on or confirmed the reported split, some are convinced that it may have been a rumor.
Who is Sebastian Stan's girlfriend in 2021? He's being linked to Alejandra Onieva.
In 2021, the rumors surrounding Sebastian's dating life have gotten arguably more intense than ever. He is now reportedly linked to Spanish actress and supermodel Alejandra Onieva, and their relationship is getting more serious by the day. Rumors of the two taking up romantically first started circulating in the summer of 2020, and although they've kept their relationship private ever since, it's clear that the pair are an official item now.
Alejandra found herself in some hot water once rumors of her relationship with Sebastian started. His fans uncovered an older image of her that shows the model appropriating Japanese culture. Sebastian's fans urged him to comment on the situation at the time, but he never did and Alejandra simply deleted the image from her feed.
That moment of vulnerability was actually one of the biggest insights into Sebastian's relationship with Alejandra that fans have seen since they started dating.
His lack of openness regarding his romantic life isn't new, however. Actress Priyanka Chopra Jonas said it best when she and Sebastian both appeared on Watch What Happens Live in 2018: "Sebastian is very unclear about his complicated [relationship] status."
Only time will tell if Sebastian decides to become more open regarding his relationship with Alejandra, but in private, the duo seems as happy as ever.