If you make your heroine funny, she's incredibly stronger. She takes over. When women crack jokes, they challenge authority. Males are linear thinkers. They think logically.
Men get the point and forget the details.
Male humor attacks. Male humor always attacks offensively, putting the other party on the defensive. These are jokes directed AT people. On the other hand, female humor allows you to relate to an experience being told, making you relive an experience you've had. It's not aggressive.