It's not rude -- it's self-preservation. You ignore it, then text her back from the parking lot after the game: "Sorry, just got this. What a game, huh?! :o)"
Exactly! I've got to get better at that. At least for once I legitamately didn't want to respond, but only felt compelled to as a simple courtesy. And I absolutely did NOT want to see her at that game. I was quite p*ssed she intruded like that.
