@Teresa1585
I understand she would have returned by now but, had that been me, as soon as I was aware of it I would sms the guest on her phone and say ...."Your dog is inside the property and getting quite upset by your absence. Would you like me to chain it up outside until you return? I am concerned there will be considerable damages from the dogs current agitated state, and you should be prepared to allow for this!"
You say she is there until Monday so, at this point I would say to her...."We agreed to a deal, I have been prepared to honor my side of it but you have to honor your side of it as well, no repeat of today, okay!"
My feeling is, this a stay you would have been better off not being involved with. The fact that you had to negotiate the terms of the stay means that this guest was not the slightest bit interested in following your rules, she just wanted to get her way....as she no doubt has done all through her life.
Poor reviews are going to come from this so, to prevent further damage, do not give any more ground to her....let her know who is the boss! 'If you want to stay abide by the rules, or leave!'
Cheers........Rob