They gave it their best shot.
The couple—who shares daughters Naomi, 3, and Zara, 18 months—also revealed they are expecting their third child together amid the split. (Jimmie is also dad to son Aadyn, 8, from a previous relationship.)
"After much thought and reflection in recent months, Lex & I have made the decision to separate," Jimmie said. "As we navigate this life change, we can also share that we will be welcoming another child together later this year."
They said they are planning to work together on co-parenting their children.
"Our number one priority is and always will be ensuring that our children are healthy, happy and loved, and we remain committed to coparenting with love and respect for one another," both continued. "In light [of] our growing family, we respectfully request privacy during this time."
Jimmie and Alexis got engaged at Walt Disney World in 2019 and welcomed their first child together in 2020, which coincided with another big moment in his musical career.
"I though getting a No. 1 was going to be the best part of my day, but then my daughter, Naomi, was born," Jimmie told The Ty Bentli Show at the time, per People. The "Best Shot" artist added that they chose her middle name, Bettie, in honor of his grandmother.