LOL! That's just like my parents' cat Joy. She's part siamese and she runs off the next door neighboors cat (a grey fluffy one named Smokey) every time he comes anywhere near their property. The funny part is that Smokey is enamoured of her and keeps coming back!
This morning, QT tried the same thing with the neighbor's feral but this time QT backed out first. QT is female and looks exactly like Wawa.
Wawa was nearby but he was smart enough not to get involve with 2 arguing females!