The hit series Chicago Fire has seen plenty of romance at Firehouse 51, from flings to marriages and breakups. Love between colleagues can get complicated, and the show’s 13-season run has seen its fair share of memorable—and sometimes tragic—relationships among firefighters, paramedics, and more. While some romances have ended happily, many have fizzled out or ended in heartbreak.
Not all Chicago Fire couples are ranked here, as only romances between Firehouse 51 colleagues are counted. Some fan-favorite relationships, like Wallace Boden and Donna Robbins or Christopher Herrmann and his wife Cindy, didn’t involve fellow Firehouse 51 team members. Here’s a look at eight romances between Firehouse 51 coworkers, ranked from the least successful to the best.
8. Joe Cruz & Sylvie Brett: Friends, Not Lovers
Status: Broken Up
Fans might forget that Sylvie Brett and Joe Cruz once tried dating in Chicago Fire. Despite being beloved characters, their romantic spark was lacking, and the dynamic between them felt more like a sibling bond. The two quickly realized they were better as friends and split amicably, leading to a lasting friendship instead. Brett recently left in season 12, while Cruz stayed at Firehouse 51, and both found happiness in their own ways.
7. Blake Gallo & Gianna Mackey: A Short-Lived Fling
Status: Broken Up
Blake Gallo and Gianna Mackey’s romance barely made it out of the gate, as Mackey only appeared briefly in season 9. Despite undeniable attraction, their relationship fizzled quickly when Mackey transferred to a different firehouse, and their fling was over before it could truly begin.
6. Gabby Dawson & Peter Mills: A Relationship Doomed to Fail
Status: Broken Up
In season 1, Gabby Dawson and Peter Mills developed a romantic relationship, but it was doomed from the start. Mills quickly realized that Gabby’s heart was set on Matt Casey, leading to a breakup. They remained friends, but the romance never took off since Gabby was always more interested in Casey.
5. Violet Mikami & Blake Gallo: An Unsuccessful Romance
Status: Broken Up
Gallo and Violet Mikami had sparks, but their relationship never reached its full potential. The two had a non-exclusive romance, but jealousy got the better of them, leading to a breakup. Despite their failed romance, Gallo’s exit still hit Violet hard, showing that their bond went beyond romance.
4. Matt Casey & Gabby Dawson: A Love That Couldn’t Last
Status: Divorced
Once one of Chicago Fire‘s most beloved couples, Casey and Gabby’s romance endured ups and downs. They married in season 5 but divorced after Gabby moved to Puerto Rico at the end of season 6. Despite their deep connection, their relationship was marked by constant emotional turbulence, ultimately leading to a bittersweet ending.
3. Violet Mikami & Sam Carver: A Slow-Burn Romance
Status: Broken Up (For Now)
Violet and Sam Carver shared a slow-burn romance that continued into season 13. Though they are currently broken up, Carver confessed his love for Violet in a season 12 episode, and fans continue to root for them. The future might still hold a rekindled romance as they navigate their complex feelings.
2. Matt Casey & Sylvie Brett: A New Love After Heartbreak
Status: Married
After Gabby left, Casey and Brett developed feelings for each other. Though they hesitated due to Brett’s friendship with Gabby, their mutual attraction eventually overcame their concerns. Casey and Brett got married in season 12 and are now building a new life together outside Chicago, providing fans with a satisfying happy ending.
1. Kelly Severide & Stella Kidd: Firehouse 51’s Power Couple
Status: Married
Kelly Severide and Stella Kidd take the top spot as Firehouse 51’s longest-lasting couple. Despite plenty of challenges, their love has only grown stronger over time. They married in season 10 and remain committed to each other through season 13, proving to be the show’s most resilient and beloved couple.
