Think about whether or not you actually need facing pages. For some layouts, it's actually easier to leave it turned off and use the document layout palette (F10) to drag pages together as spreads. In this case, there is no left or right as such, but you can drag page 2 to the right of page 1 instead of underneath it.
If you are sending this file out to be printed, please check with your service bureau for advice, as facing pages abuse can really mess up some imposition software.