It all began Saturday when a Twitter handle labeled Da Giggle Factory posted a picture of the "You've Ruined Me" singer from her first marriage, with the caption, "Remember the good old days when @leannrimes was just a chubby country bumpkin married to a gay dude?"
Rimes, who famously went to rehab last year in order to curb her urges for the interactive website, wrote back: "hahahaha I'm gonna choose to laugh at this" -- which rubbed Sheremet the wrong way, as he wrote back to his ex-wife, "Laugh away-Who's the bully now?"
Sheremet then wrote a message addressed to both Rimes and the NOH8 Campaign, as he said, "I don't do twitter wars, but I do hate ignorance."
Rimes, doing damage control, clarified she was "laughing" at herself, and said Sheremet's "not gay and there's nothing wrong" if he was.
"I have always & will always support the gay community," she wrote.
Like Brandi Glanville, Sheremet was publicly cuckolded after his wife's 2009 affair with Eddie Cibrian came to light after the two filmed the TV movie Northern Lights. Sheremet subsequently found love with photographer Sarah Silver, and the two have been married since 2011.