Real Housewives of Atlanta star Porsha Williams was living it up with her estranged husband, Simon Guobadia, in a video she posted days before pulling the plug on their marriage. The Bravolebrity called her beau “my ride or die” and added the hashtag “BeHisPeace” in the caption of a clip showing the two cruising around in a jet car during their visit to Dubai, RadarOnline.com has learned. Social media users pointed out there was no indication of trouble in paradise at the time. “It was all good about a week ago,” one fan of the franchise remarked. “Happy Wife Happy Life,” read another post of …