Kung Pao Chicken is a traditional gourmet dish in China, which is usually made of chicken, peanuts, dried peppers and other ingredients. The statement that "my girlfriend ordered Kung Pao Chicken and her boyfriend ran out" may imply that when my girlfriend ordered this dish, her boyfriend left or escaped from the current scene for some reason, perhaps because he didn't like this dish, or because he had other things to deal with, so he couldn't accompany his girlfriend to enjoy the food.
There is no way to verify the truth of this statement. It may be just a joke or ridicule on the Internet to describe a virtual situation. In any case, this statement should not be interpreted as belittling or discriminating against anyone.