
Chicago Fire has hinted at the development of a new romance within Firehouse 51 over the last season. Here are a few reasons why a relationship between Matt Casey and Sylvie Brett could work out.
It wouldn’t be Chicago Fire without some in-house romance. You have Kelly Severide and Stella Kidd, not to mention Chief Wallace Boden and his wife, Donna who met through a call; so it makes sense that other characters get some love in their life too.
A couple of those characters happen to be Captain Matthew Casey (Jesse Spencer) and Paramedic Sylvie Brett (Kara Killmer), who have grown closer over the latest season of Chicago Fire. While it was a shock to Dawsey and Brettonio fans, there are some who wouldn’t mind seeing Brettsey become official. Here are a few reasons why a relationship between Brett and Casey could work out.

1. They had a friendship first.
Both Matt and Sylvie became friends through Gabby Dawson (Monica Raymund) all the way back in Season 3. Sylvie’s character started out as a replacement for Leslie Shay (Lauren German), who died in the Season 2 finale. Sylvie was partnered up with Gabby, and at the same time Dawsey’s relationship was growing stronger. The three of them even spent some time together after Sylvie was having issues with Antonio Dawson (Jon Seda).
While Matt and Sylvie didn’t share a ton of scenes together early on, the times they did interact helped establish a baseline for a friendship to be forged. A few examples of this would be when Sylvie tended to Matt when he and Jimmy Borrelli (Steven R. McQueen) were hosed down after being exposed to hazardous materials; or when Matt made sure Sylvie was okay after she and Peter Mills (Charlie Barnett) were abducted. These small moments would prove to be useful as Chicago Fire continued to move through the seasons.
2. They share the same character traits
Season 7 further deepened Sylvie and Matt’s relationship, partly by bringing to light how similar they are. They both exhibit exemplary morals, a “by the book” attitude, as well as immense compassion for the victims they help. Both Matt and Sylvie think things through too, which was put on display with Gabby’s season premiere goodbye.
Matt went back and forth on whether or not it was worth trying to keep his relationship with Gabby alive, asking Kelly Severide (Taylor Kinney) for advice. Meanwhile, Sylvie used her new partner Emily Foster (Annie Ilonzeh) as a soundboard for her feelings surrounding the loss of her friend. Later on, Matt and Sylvie were seen contemplating how their lives should go after Gabby.
Perhaps the most damning piece of evidence in this specific situation came when Matt handed Sylvie a note from Gabby, which was a photo of the two paramedics with a simple “love you always” sentiment. This showed the characters vulnerability, as they both were grieving the loss of their partner (in life and work, respectively).
The above scene allowed for Matt and Sylvie to later discuss their feelings surrounding Gabby’s departure – remember Sylvie’s telling: “If you wake up at 3:00 am and you need to talk, I’ll keep my ringer on?” It showed that trust was beginning to form in their friendship, which allowed for it to potentially grow more serious.
3. The obvious signs
As Matt and Sylvie continued to lean on each other, they also turned to one another for advice in their personal lives. In “You Choose“, Brett helped Casey look for a new apartment; in “Fault in Him” she urged him to get help for his post-traumatic stress after a near-death experience.
During “Until the Weather Breaks” the duo came together again to help care for a stowaway kid at the firehouse; while in “Try Like Hell” Matt tried to help Sylvie with her fractured relationship with Chaplain Kyle Sheffield (recurring guest star Teddy Sears).
Another obvious scene comes from the aforementioned episode, where Brett and Casey were so in sync that they could guess each other’s next moves in order to win at charades. This doesn’t go unnoticed, especially by Matt’s date Olivia (which Sylvie thought she was doing a favor by setting up), who later tells Brett that “she’s the one who should be with Matt Casey.”
She vehemently denies it, but when her nerves get the best of her in “The White Whale” even Kidd and Foster notice her change in demeanor around Matt. This makes Sylvie stop and consider her feelings for him. Their closeness is further emphasized when Matt is injured, and Sylvie has to tend to his wound. They talk, and share yet another longing look and meaningful thought with one another.
All of these minuscule moments don’t help Sylvie in her contemplation over her feelings for Matt, and she’s blindsided further when the Chaplain surprised her in the Season 7 finale by proposing. Despite being broken up, she does accept his proposal, which leads to the a short, albeit intense conversation between Brett and Casey.
It turns out that Casey unintentionally pushed the couple back together when he told Sylvie that she and the Chaplain were great together. Well, Sylvie heeded his advice and now the both of them are left confused thanks to their uncertain feelings.
When Season 8 comes back on September 25, we bet Matt and Sylvie will have a lot of explaining to do. The two will hopefully talk to each other about everything that’s transpired, but whether or not it will lead to a heartfelt confession is up to the writers.
Regardless of their relationship status, it has been very cool to see Killmer and Spencer interact more. We know these two will continue to shine onscreen, and we cannot wait to see what’s in store for Sylvie Brett and Matt Casey in Chicago Fire‘s new season.
For the latest Chicago Fire season 8 spoilers and news, plus more on the entire series, follow the Chicago Fire category at One Chicago Center.

