Cheated on: Cynthia Rodriguez and Madonna
Secret lover(s): Madonna and Melissa Britos

Once the media caught a hold of A-Rod's infatuation with the Kabala Queen, his wife, Cynthia, played sleuth and investigated her husband's texts. Mrs. Rodriguez hit the slugger with a $50 million divorce suit and threatened to publicly release the messages between the two superstars. It gets better. During a trip to Miami, A-Rod was caught lounging with Melissa Britos, whom he supposedly became love struck according to a friend of the model: "He became obsessed with her. He sent her at least a dozen text messages, asking her to spend time with him." The press leaked the story while he was still dating the material girl. Double fail.