The couple, who started dating more than 15 years ago, wed in 2010 and have three children, Noah, Bodhi and Journey, according to Yahoo! News.
Green said he and Fox have "always been honest" with each other.
"Neither one of us did anything to each other," he said, adding that nobody was "a villain or a victim."
Green also said Fox and rapper Machine Gun Kelly, who were recently pictured together, are "just friends," CNN reported.
"Who knows if this is the end of the journey?" Green said.
Green and Fox previously split in 2009 and 2015, according to E! News.
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