Minka Kelly and Derek Jeter have called it quits on their three-year relationship, which had been peppered with engagement and marriage rumors. Yep, it's a sad day in Pretty-ville. "The split was amicable," Kelly's reps first told Just Jared about the breakup. "But they remain friends. They still really care for each other." Perhaps that means there were no in-flight meltdowns in response to the romantic strikeout. The New York Yankees shortstop, 37, and the star of the upcoming "Charlie's Angels" TV reboot, 31, had kept mum about their relationship, but Kelly was frequently spotted on his arm and was in the stadium for Jeter's 3,000th career hit in July. "The Roommate" actress also appeared in the HBO documentary "Derek Jeter 3K" last month, which chronicled the baseball star's career. Jeter's little black book includes Mariah Carey, Miss Universe Lara Dutta, Scarlett Johansson, singer Joy Enriquez, Jessica Bie...