[Heel n Toe]

I'm no expert on the real estate business, but I can't imagine a reason the house would need to be vacated in order for her to show it to "other realtors." That's the kind of request a realtor makes for showing to a prospective buyer.

If when she replies, she asks if you can be out Friday night and says she'll text you when she's done, she's probably planning to have a party there.

Just kidding... but the fact that she hasn't replied would nix it for me... I'd text her that you changed your mind and you don't want to do it.

And tell her that her lack of a reply is why you're cancelling.