Almost 50 years in. We still love each other and can't imagine being without the other one. Sex between us left many, many years ago. Over the course of our relationship there have been bumps in the road - usually sex driven...but we have survived them because of our love, respect and liking for and of each other.
Our arrangement for the last number of years is that when we are apart it is ok to hire....when we are together we do not let anything interfere with our time together.
I think each couple has to decide what works for them. But it does take work! Too often beak ups happen that did not have to if the couple was honest with each other. Breaking up is not always the answer.