"I think I'm realizing that I have been married to a person for almost seven years, and I don't think that I ever really knew him at all," she said.
Shellie Zimmerman filed for divorce earlier this month, just two months after her husband was acquitted on murder charges related to the 2012 death of Florida teenager Trayvon Martin.
She said that she had stood by her husband throughout the ordeal that began on Feb. 26, 2012, when he shot and killed the unarmed teenager and came to an end when a Florida jury acquitted him of murder this summer.
"I stood by my husband through everything and I kind of feel like he left me with a bunch of broken glass that I'm supposed to now assemble and make a life. ... It's just heartbreaking," Shellie said.
"I have a selfish husband. And I think George is all about George," she said.
George Zimmerman's legal team declined to comment on the divorce proceedings. They did not immediately respond to requests for comment today relating to the domestic incident.
Josh Margolin and Aaron Katersky contributed to this report.