You don't stay married for thirty-nine years because of sex or even because of love, but because your partner is a real friend to you, because they respect and regard you. ↗
As a person, I'm pretty much the same except that I've come to terms with who my real friends and supporters are. I don't get particularly friendly with new people at first go. ↗
I spent a lot of years on the road, and what happens is you find out who your real friends are and you find out where your strengths and weaknesses lie in communication. I've had the same friends for 20 years now and I can count them on one hand. ↗
If out of all mankind one finds a single friend, he has found something more precious than any treasure, since there is nothing in the world so valuable that it can be compared to a real friend. ↗