Ever since Jeezy filed to divorce Jeannie Mai, one particular unfounded rumor's gathered steam online -- that she cheated on him with Mario Lopez -- but we're told all that rank speculation is a load of BS.
Sources close to Jeannie tell TMZ ... there's absolutely no truth to any rumblings of infidelity between her and the "Access Hollywood" host, or with anyone else, for that matter.
It seems the false buzz stems from the fact Jeannie was a guest cohost with Mario last month on his show, but we're told any perceived chemistry between them is simply professional. Translation: It's showbiz, folks.
But, as we reported, Jeezy filed for divorce in Georgia earlier this month, and in his docs said there's "no hope for reconciliation."
Since then, fans online have been looking at Jeannie and Mario's work together through a different lens -- but, again, people in her world say fans are unfairly, and incorrectly, interpreting their working relationship.