Kevin Costner and Christine Baumgartner’s divorce just got nastier. A new report has emerged suggesting the handbag designer, 49, may have gotten too close to tech whiz Daniel Starr during her 18-year marriage to the Yellowstone star, 68.
Starr, 42, who’d rented out the guesthouse on the estranged couple’s $250M Carpinteria, Calif., estate, denies the claim, telling In Touch, “There is no dispute. I was simply a renter. I hope Mr. Costner and his wife can amicably resolve their differences, and I wish them peace. I respect Mr. Costner, and he was always very kind to me and my son.” Meanwhile, Christine has criticized Kevin for informing kids Cayden, 16, Hayes, 14, and Grace, 13, of their divorce over a 10-minute Zoom call without her present. Christine is also asking…