Oh. Gwen's face falls just barely, her eyes flashing with realization.

Someone's using present tense and not picking up on Gwen's use of the past. She deducts that the witch doesn't know Cordelia's been dead for...well, maybe a year? How long has it been? She doesn't really know. And maybe it's not the point.

"God, this time thing is really messed up," she says with an awkward sigh. She looks away. Maybe it's right there on her face, but she doesn't say anymore.