I don't get the coffee reference. Who doesn't have coffee out of spite?
Nice job on the GAL; harmless flirting is fun! However, you still seem a little caught up in things she says or does - and I can guarantee you 99.9% of it is completely meaningless.
I think sometimes a WAS does have a SHRED of good in them, so they go through a few motions to try to look decent; and it gives the LBS false hope.