If you want to turn an Aquarius off, lay down extensive rules right off the bat. But, of course, why would you want to do that!?
Aquarians need to have freedom, so their innovative minds can have time to recharge and thus be able to further your intellectual goals.
Routines just don't fit into the vision you have of your future. Not that you're incapable of being on time, or returning a call. You just can't stand the idea of every day being exactly the same. So obviously your love life can't get too predictable.
Mixing it up in your dating life brings the most happiness and fulfillment. Challenge each other to find creative places to go, or cool new activities to try.