If you are not married, make sure you do your homework and be cautious. Technically it will be illegal for you to live together or be alone together in Dubai, although it is not actively policed. Usually it will be discovered when you're being investigated for something unrelated, e.g a noise complaint or being drunk. It can mean jail time and deportation afterwards.
As ATC is linked to the Government in Dubai, knowledge of you being an un married couple could open them up to criticism if you are found out, so you might want to be very discrete and not let them know about your relationship.
I'm sure our many expats can give further advice.