Brian Austin Green saw Megan Fox's fling with Machine Gun Kelly coming, it's being claimed.Brian and Megan recently separated after a decade of marriage and there is speculation that she is rebounding with the 30-year-old rapper, despite telling her estranged husband they're just friends.Now an Us Weeklysource alleges: 'Megan and MGK have hooked up and they became intimate when Megan and Brian were separated, but hadn’t fully cut ties.' 'Saw it coming':Brian Austin Green (pictured) is thought to have predicted Megan Fox' rumored new romance with Machine Gun Kelly, an Us Weekly source allegesThe insider asserted that the married couple 'were having issues for a while' and Brian 'saw it coming' before Megan reportedly took up with Machine Gun.