The `21` actress and the `True Blood` actor - who were dating for almost two years - have decided to call time on their relationship, but friends insist the break-up is amicable. One pal told Us Weekly magazine: "It was very mutual. And it happened a while ago." And it seems Alexander hasn`t wasted on time since being back on the singles` market. Earlier this month, he was spotted flirting with `Games of Thrones` actress Emilia Clarke at a party, while he recently left a star-studded bash with a mystery brunette. A source said: "He`s single and he is loving the attention!" Both Alexander, 34, and 28-year-old Kate were always coy about their romance, and when they were an item they refused to confirm their relationship status. Speaking about the actor, Kate - who previously dated Orlando Bloom - said: "That`s a minefield, man! I`m not stepping into that. I`ve learned too well from being on that road. "We are very good friends, He`s a wonderful, wonderful man. I adore him."