Relax and enjoy your short life here on earth.
Well said. My first wife had a wise outlook about other women and men. She always said "look all you want, just don't touch". And I found out that was exactly what she meant. She would often point out other women for me to look at, but would only let me look for a short time. Concentrated looking was to much like touching. But she was the same way in looking at muscular men. We each learned each others limits and let that be our boundaries.
My pinay wife is now learning that this is a reasonable policy, but it took a while for her to gain confidence in me and to know that I would only look. Yes, my looking boundaries can vary from day to day, but she is learning to point out some real lookers.
That being said - the bottom line is that each couple has set their own limits and what they are comfortable with. Outsiders should stay outside.
What a couple does inside their own house is their own business and none of mine or anyone's for that matter.