My Ex-Girlfriend just gave me dating advice before a date?

This girl and I had a rather brief relationship that was good while it was going on, and then really, really sucked when we broke up. Both of us preceded to cut each other out of our lives, and didn't have much interaction for about a year. Yesterday, I asked a friend of this individual out on a date (I'm super into her, and am completely over my ex, trust me) and then today, said ex sent me a text saying "take her to x movie and don't be a dick". HOW THE ACTUAL HECK DO I RESPOND WITHOUT BEING RUDE?

EDIT: Yeah, I'm just going to ignore her. Thanks guys, sorry for all the fuss.