Hi,
you need to look left only when you know you are facing right and you need to check for look right only when you know you are looking left, so basically two state, one when looking left ( set the cahractet to look left and watch for look right action) and one state that do the opposite.
As soon as PlayMaker 1.8 will be out, I will release the Unity 2d platform demo done in playmaker, it will feature this system.
bye,
Jean