I've seen it where the spouses share a marital home and switch off to the same apartment, alternating weeks at each residence, so there's two, not three places to live.

M 20+ T25+
S ~15.5 (BD)
BD 4/6/15
D 12/23/16

"Someone I loved once gave me
A box full of darkness.
It took me years to understand,
That this too, was a gift."
~ Mary Oliver