On Monday, the former Sonny With a Chance star shared this heartbreaking photo of Carney holding their two sons -- Kenneth James, 3, and Bentley Cash, who recently turned 2.
"Missing you @chrisgcarney," Thornton captioned the black-and-white snapshot.
Thornton posted another photo of Carney back in February, where she opened up on their youngest son's bittersweet birthday: "Tomorrow our little Bentley Cash Carney turns two! As joyous as an occasion that will be, I'm also heart broken that my husband/love of my life/best friend in the whole world/confidant/encourager won't be there with us."
"How am I rounding the corner to three months since he's been gone?" Thornton's caption continued. "It feels like I just saw him yesterday, then again it seems the days sometimes drag on in a torturously slow manner."
On March 8, Thornton shared a poignant post dedicated to her husband, where she wrote, "I would give anything to be able to turn back time and beg you to stay home that night. I will never understand why you had to leave this world so soon."
"This still doesn't feel real," Thornton continued. "I feel like you are just on some long vacation and I'll be seeing you soon."