Should it be him.
My boyfriend and I at the time had been dating for 3 years when he moved countries. We hadnt spoken for 6 months roughly. When my birthday came round I got totally wasted and slept with a guy in the club toilet and then went home with a different guy and slept with him to!! I never told my bf as a few weeks later he broke up with me as he had being seeing someone else. Pretty sure thats karma at its best! 18 months on and im still single, but he is pregnant with the girl he was seeing whilst still 'with' me.