Very good points!
We are pretty happy with our relationship the way that it is (my husband and I), as we have talked about its current rhythms of it at great length. Organization is a big part of making multiple relationships work! very good advice. Currently we have days scheduled for each partner, and of course life steps in and things change, but we make do with Skype dates and my husband and I go out dancing a couple times a month. For the most part we are just happy cuddling in bed together.
My husband is very focused on creating a new business and it takes much of his time. I am very proud and supportive of this, but it is more helpful of me to not be underfoot during this time.
Have courage to continue this journey, for it holds nothing but lessons and wonders.