So my girlfriend is pissed off at me over an ant?

Right so my girlfriend is a unitarian and such. In short shes an environmentalist. So were just texting like normal and she tells me she killed an ant because it bit her. So I told her good job... then she says shes sad because it had a family. I then told her ants don't have families but queens. She then tryed to argue with me that ants have emotions. Then i brought about another subject about how she is always saying she is more "chaotic" than me when she can't even kill a small insect with out remorsing about it. Now i think shes pissed off at me for telling her ants don't have emotions. I aslo called her childish for thinking such a thing. What should I do about this cause shes crazy and she might dump me over an ant XD