Sex File: Why is our sex more passionate in our long-distance relationship?

Suzi Godson: "It is also true that repeated separation and reunion create a sense of anticipatory nostalgia that sweetens the experience exponentially." Picture: iStock 

My partner and I have been together for three years but for the past six months we have been in a long-distance relationship due to work, only seeing each other at weekends. 

The sex has felt much more passionate and we've been more connected. How can we keep that going when we're seeing each other every day again?