I agree with the other responses you are receiving, that was rude and insensitive of her....and cruel.
Why did you tolerate it? You need to call her on the carpet on this behavior.
IMPO she was completely dismissing your very presence in the room and it was disrespectful, you need to stand up for yourself.
You didn't tell us how you handled the situation....other than you got a "bit irritated"?!!! I'm thinking her rude behavior might have earned her a night on the couch....just bend over pick her up, carry her butt to the living room and dump her butt on the couch....then go to bed yourself.
