Gina Kirschenheiter’s coparenting relationship with her ex-husband, Matt Kirschenheiter, has come a long way — and Real Housewives of Orange County fans are finally going to meet him on season 15.“I was very thankful that he [filmed] and I do owe a lot of that I think to his girlfriend,” Gina, 36, exclusively told Us Weekly. “She’s good for him.