... what about the coworker who ignores you in the hallways but come running when there's food - then leaves without a word of thanks? What to do with that one?
Mind you, it was the same coworker who didn't contribute fairly, which ultimately led to the end of our lunch co-op that we enjoyed so much.
It's not polite to not invite her, since she is in our department after all. And I would feel horrible if she feels left out, especially when she is the only one not in our office area right now. Yet I can't help but to feel a little unappreciated. Like being taken for granted. Makes me reconsider if we can somehow find an excuse to not invite her over next time.