It looks like Jesse Williams and Minka Kelly have officially gone public. The “Grey’s Anatomy” star and Derek Jeter’s actress ex were seen on a date in Hollywood, after Williams used an appearance on Jay-Z’s “Footnotes for ‘4:44’” to slam cheating rumors. “I was in a relationship 13 years . . . and all of a sudden motherf – – kers are writing think pieces that I somehow threw a 13-year relationship — like [the] most painful experience I’ve had in my life like with a person I’ve loved with all of my heart — that I threw a person and my family in the trash because a girl I work with is cute,” he said. Page Six reported on his romance with Kelly in May.