Kardashian family matriarch Kris Jenner has reportedly become difficult to be around after giving up alcohol to lose weight and get in shape for summer.

Insiders say her decision has resulted in a drastic mood change, and her boyfriend, Corey Gamble, is bearing the brunt of her irritability. "She looks great, but she's a total pill to be around," says a source, per National Enquirer.

The 67-year-old head of the Kardashian empire is determined to get fit for the summer season. However, sources claim this new fitness journey is straining her relationship with 42-year-old talent manager Corey Gamble.

"She has lost a ton of weight, thanks in part to her trusty lipo and also from knocking off booze," the source shares. "She's not gulping wine and getting the munchies like she was before."

Kris has allegedly shed 15 pounds as a result of her alcohol detox. However, this transformation has come at a cost. "It's resulted in a total personality change," reveals the insider. "She's an absolute nightmare to be around and snapping orders at everybody, especially Corey, who's in the direct line of fire since he lives with her."

In the past, Kris was known for overindulging in alcohol during family gatherings, even slurring her words at Khloé's 38th birthday party last year. "Corey used to complain about having to take care of drunk Kris, but now he's missing those days; they were so much more fun," the source confides.