Most of us who somehow find the courage to reach back into our memories of young adulthood will recall many dates and matches that...did not go well. Truth was that finding a 1:1 match that was fun and felt right for both parties took a lot of time, energy, and "um...good luck on your journey...bye". Those in our orbit who are now single in older adulthood report much the same circumstance...except potential matches now have "a history", expectations, and battle scars. They all report "nope, nope, nope, NO, nope..." when scanning through potential partners.
Which brings us to couples' dating. Even though the agenda is quite different, there is still a matching process. Each person in the foursome has to have some interest and enjoy being around the other three. When all four (as each should) have veto power, the likelihood of getting to "Both of us enjoy being around both of you to make the choice to spend time...in public and in private with you" is predictably low. Moreover, time and distance narrows opportunity and choice. As adults, we all have other things to do than "find a date, get ready for a date, go on a date".
enhancer (just above-thanks!) makes the key point: " we both still have the same lust and fire for each other that we did when we started our incredible journey together. I think if nothing else swinging only reinforced that for us. If a top notch situation for both of us pops up in the lifestyle we would jump on board. Otherwise we will just continue enjoying the amazing sexual connection we have with each other."
We'll add one more thing, though: we have a fantasy of actually bringing together the couples who seems to show up consistently in the threads that we respond to. The values are shared, the perspectives add to our own, and we think we would enjoy meeting all y'all. While there would certainly be some 'nope, not that couple' when meeting for real, we think the odds of finding matches would be much higher now that we have gotten to know you through the SB site.