The most stable relationship was
Ron and Eric. Think about it. They shared a business together and seem to enjoy each other company and had the same likes.
Take a look at the others, Shelly and Holling, now those two were a Fruedian wet dream. Especially together.
Maurice and Barbara, a couple of control freaks. At least in that relationship you never had to worry about leaving the seat up.
And finally Joel and Maggie, neither had enough respect for the other's gender and on top of that, they really didn't enjoy each other's company.
If you're curious, the 2nd most positive relationship was between Cicely and Rosalyn. What was NX trying to tell us?
Spenser with an "S", like the poet.