Your an idiot. Msny people have relationships with people they dont have kids with and things like this dont happen. I have had 2 girlfriends my kids knew and they were fine with their kids. No problems. This a rare example but to act like the parents shouldnt have a life is just dumb. My having a girlfriend with a child made me happy and therfore my kids were happy since I was always in a good mood. Dont let one bad apple cloud your judgement