Sometimes your love bank can simply feel empty because you are lacking something that IS your love language...even for just a few days...you know the absence of it somehow makes a resounding echo within you, which in turn makes your desire plummet. It could in a way be a silent resentment on your part...one that you don't actually recognize as resentment, but it shows up in your drained libido.
I find that on my really busy days I can STILL find some way to flirt with my H...whether it's that I send some racy text messages, or leave a suggestive photo somewhere he will find it (but that's still private and for his eyes only)...you don't have to be AROUND him to flirt with him.