Hey we are 58 and 43 too, my husband and I! Married 12 years. Just opened up to a poly lifestyle on 10/10/10. It's been a lot of work so far; the lows are really LOW, but the peaks have been incredibly WORTH IT! We have definitely gone deeper in our love for one another. And I have finally been able to express the love I had been fighting for 4 years! Wow, I have a boyfriend, it's so cool to say that, and not have to lose my beloved husband or my family over it. I know I now have my cake and I'm eating it too, and it is both a lovely work of art AND delicious!