I am on line only. Been very happily married for quite awhile. A vanilla marriage. Working on 43 years now.
I know several in D/s marriages real life. Seems like the D/s fades away and they are very happy with vanilla. What I keep hearing is, no one can do it 24/7. But I am sure that some do.
Whatever kind of relationship or marriage you are in requires work, commitment and trust, openness, respect and love.