Oh Yeah it makes a lot of sense... He and I only want each other to be happy, after all. I already agreed to this lifestyle, at some point in the undefined future. It's definitely a big adjustment to what we'd had.. but in some sense, really not. I raised our daughter by myself for 13 years while he was with others (and alone too) so there were a lot of years where we had space from one another, for lack of better twems!!
He for sure respects the relationship we have... he has put the brakes on the "outside" interest for now, since I reacted so negatively to the whole thing, but now in some ways, I'm coming around...there are potential benefits for both/all of us (and as-of-yet unnamed future others, possibly) in this situation.
Thanks so much for your thoughts.