"Sex is not a metaphor for a relationship, it's a parallel narrative. It speaks its own language. Love and desire are two different languages. We would like to think that they flow from each other. While love and desire relate, they also conflict. Love thrives in an atmosphere of reciprocity, protection , and congruence. Desire is more selfish. In fact, at times, the very elements that nurture love: comfort, stability, safety, for example, can extinguish desire.
Love seeks closeness, but desire needs space to thrive."

--Esther Perel