Oh you're a fine pair, you two, you really are.  What's sauce for the goose is sauce for the gander. 

Episode Recap:

Kore’s like, ‘wut I have superpowers?’ but Grant, feeling spry, is mostly interested in why she’s not getting the heck out of dodge fast enough.  I mean, look at him jump that countertop, if she had half his kind of gumption she’d be long gone cross them distant mountains by now yessiree bob.  Anyways, Grant points out that Xander is in fact, not entirely hateable, some of the time.  And Kore, has only to pull out the ‘tu quoque’ before Grant reconsiders voicing his rage and goes outside to drink his beer calmly like a gentleman until dinner is ready.  Kore has not thought of herself as a homewrecker before, so armed with this new angle, she goes to spin another story for Grant’s benefit.  She claims that her insatiable bloodlust for revenge will keep her from succumbing to Xander’s tender advances, and Grant is…dubious. About a lot of things.