Yeah you did make the right choice, because even great sex "gets old". We all eventually slow down in that department, if we are "best friends" then it has a smoother transition. I was REALLY sad when my husband began slowing down in that area ( he is 6yrs older), but THEN I started to slow down also..........
Truth is, sex is great, but it's more about the connection to everything else that made up our life. I think you did the right thing!
Juliann