And they never were sexless again, lol.
I kept thinking while reading this story that the main plot point didn't make sense: even if you're really tired, that shouldn't stop you from wanting to have sex. In fact, it's often the other way around: sex can be very refreshing, especially for the tired mind!
But of course if the problem is, not tiredness, but that you have been forcing yourself to be a top/dom even tho you don't like it at all (because the real you is a total sub with masochistic leanings), then everything suddenly makes sense! No wonder she didn't want to have sex after work if the "sex" they usually had felt to her like more work!