The fate of 'Brettsey' was looming as Chicago Fire geared up for its Season 11 premiere. When Matt Casey (Jesse Spencer) made his return to Firehouse 51 for Kelly Severide (Taylor Kinney) and Stella Kidd’s (Miranda Rae Mayo) wedding in the Season 10 finale, his future with Sylvie Brett (Kara Killmer) was far from promising.

After leaving Chicago for Portland in the 200th episode, Casey found himself in a long-distance relationship with Brett for the first time. With Jesse Spencer permanently leaving Chicago Fire that same episode, fans wondered what fate had in store for the beloved couple.

While the Brettsey reunion in the Season 10 finale offered viewers a sliver of hope, co-showrunner Andrea Newman seemed to have other plans this season.

Where did Brettsey leave off in Season 10?

In Chicago Fire’s explosive Season 10 finale, Stellaride officially tied the knot. Casey and Brett, on the other hand… did not. When long-distance became too difficult for the couple to handle mid-season, Brett took time off from work to visit Casey in Portland. After staying with him for a month, Brett then returned to her life in the Windy City, and the couple reunited on Stellaride’s wedding day.

As Severide and Stella’s respective best man and maid of honor, Casey and Brett helped the ceremony go off without a hitch. Unfortunately, things took a turn for the worst at the reception.

While the couple danced together, Casey told Brett, “I wish you could have stayed forever,” to which Brett replied, "You made a beautiful life for yourself in Oregon, Matt. But it's your life, not mine. My 51 family is here. My work is here, my life is here. How much longer can we keep this up with so much time apart?"

Casey’s response was a dagger to the heart. “I don’t know,” he told Brett. “But we’re together tonight.”

Do Casey and Brett break up in Season 11?

Now that Brett is solo in Chicago, co-showrunner Andrea Newman told TVLine ahead of the Season 11 premiere that Brett is “really struggling with this decision about long distance and Casey, and she does love him deeply, so she’s got a big decision to make.”

Newman added that Brett, who once based many of her life decisions on men, was finally going to find more independence and put herself first. “She’s at the crossroads now where she’s focused more on what her decisions are,” she added.

While the showrunner didn't outwardly reveal whether or not Brettsey would stay together, we found out pretty quickly — as in, by the end of the Season 11 premiere. After Brett's ex-fiancé Kyle made an unexpected visit (and revealed that he's now engaged to someone else), Brett was forced to put her own relationship in harsh perspective.

In a phone call to Casey, Brett said, "Our stars just didn’t align, that’s all. The timing just wasn’t right. But Matt, maybe someday."

Now that Brett is focused on her own future and what she wants out of life, viewers can expect to see a tremendous amount of growth from her character — sans Casey. But that doesn't necessarily mean the door is closed on the couple forever.

When asked if they hope to revisit the relationship, co-showrunner Derek Haas told TVLine, "Oh, yes! We’re always hoping those stars align."

Tune in to see what becomes of Brettsey when new episodes of Chicago Fire air on Wednesdays at 9 p.m. ET on NBC.