George Zimmerman's Wife Tells Katie Couric 'Something Snapped' Since Trial (Video)

Shellie Zimmerman on Thursday's "Katie"

His estranged spouse says she thinks he unraveled after he was found not guilty of murdering Florida teen Trayvon Martin.

George Zimmerman's estranged wife, Shellie, said she thinks his behavior changed after the Trayvon Martin murder trial.

In an exclusive interview on her eponymous daytime talk show, Katie Couric asked Shellie if, in light of George's multiple arrests and recent charges of domestic violence, he was like that before or if he unraveled after the trial.

"I think he unraveled after the trial," Shellie said on Thursday's Katie. "Obviously there was the prior domestic dispute [charge] with his fiancee [in 2005], so he may have had that potential all along. … He never assaulted me before like he did during our domestic dispute."

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Indeed, George was detained after an incident at their home when Shellie returned to retrieve some belongings after she had left him. She called 911 but there were no charges filed.

Shellie says she didn't file charges because she was told if she did so, since she's on probation for lying about their finances during his bond hearing, she would go to jail too.

Looking back, she said, "I probably should've sacrificed myself."

Shellie said she hasn't seen George in a couple of months and doesn't know who he is anymore.

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"Going through the past year and a half, I don't know how that changes a person or [when] a person breaks, but I feel like that happened to him," she remarked, adding that she found out since he was acquitted that he was "lying about a bunch of things."

Shellie later said "It certainly seemed like something snapped in his spirit."

"And made him behave like what?" Couric asked.

"Like a monster," Shellie said.

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While Shellie admitted she has some doubts thinking back on the trial, she doesn't believe George murdered Trayvon Martin.

"I don't believe George maliciously went out to murder someone that night," she told Couric.

She also said she doesn't believe he's a racist, but took a long pause after she was asked why before explaining, "George had such a great heart. We both mentored two African-American children. The majority of his friends are African-American. I just can't go to a place in my heart where I believe he was a racist."

She told Couric that she hoped George "gets the help he needs to deal with his situation and no one gets hurt," and agreed with the host's assessment that he seem like a "ticking time bomb."

Shellie, who wasn't at home the night of the Trayvon Martin shooting, having briefly left him after a fight, reflected that she wishes "that he had just let me go and not called me back into his life to play the role of a supportive wife because my life would've been so different."

She also told Trayvon Martin's parents that she's "so sorry for their loss."

Check out two clips from Shellie Zimmerman's interview below.