She knows her worth. “Real Housewives of Orange County” star Gina Kirschenheiter might not have started planning her wedding to fiancé Travis Mullen just yet, but she has taken a step toward securing her finances, her friend Emily Simpson told Page Six’s “Virtual Reali-Tea.” “She already got that,” Simpson, 50, said of Kirschenheiter’s prenuptial agreement. “Maybe I shouldn’t have [said that].” Kirschenheiter, 42, began dating Mullen, 41, in 2019 after a friend set them up. The couple — who each have three children from previous marriages — got engaged in Big Bear in December 2025. However, the Orange County-based realtor has been taking…