*Singer Cassie is now using her Twitter account to deny rumors that her mentor Sean “Diddy” Combs put a ring on it.

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In August, her reps issued a statement blasting speculation the pair had become engaged. Today, the 26 year old singer, who is signed to Diddy’s Bad Boy Records label, unleashed a Twitter tirade to set the record straight.

In a series of posts, she wrote, “Last thing: F**K a blog & anyone that makes up bulls**t – you ain’t s**t. I never even give a thought to unvalidated s**t that gets posted online, but I’m tired of it. Been committed for a Long time to someone and I am sooooo in Love with Him!”

And responding to a fan posting, which read, “Poor @cassiesuper thinking the blogs or anybody for that matter cares that much about her… f**king her old a** boss,” Cassie replied, “Shut the f**k up. U just took 5 minutes to think about & write that. Sit down. Thank you. You are muted.”