I Share My Best Friend's Wife

We've been friends for just over 40 years now. We started sharing wives about 30 years ago when we were all in our early 40's and enjoyed many great times together. Sadly, I lost my wife 11 years ago and can't say how thrilled I was when my friend and his wife pulled me out of my depression and said they still wanted to carry on.
Mostly all three of us got together, but every so often he allowed his wife and I to meet on our own. That's sincere friendship for you. I love you both! Thank you!