Article continues below advertisementAfter Kate Gosselin revealed she's had a new boyfriend - her old bodyguard Steve Neild - for a "little over a year," her estranged son Collin Gosselin called her out for allegedly cheating on her ex-husband. "What really upsets me is that my mom had an affair with our bodyguard way back in 2009, and for years would share hotel rooms with him while we went on family vacations, while I was in a connected room!" Collin shared on his Instagram Story.