Afternoon to both of you.
Does she plan on doing some shopping? Could be the reason for the location. Not to mention seeing the fountain at night. Great weather for eating out and seeing the water show.
Mel, here is a link with hotels in the area:
http://www.booking.com/district/ae/duba ... trict=1809Gives an idea of the price range. She can call the hotels and check if there is much of a difference between direct contact and the website.
If she needs anything, give her my contact details. Would be glad to help if I can.