A mate of mine got divorced after 20 years.
They got married again but live in separate houses
in the same street. He reckons its perfect, but expensive.
When either of them get pissed off with each other or need their
own space they just go back to their respective houses for a while and
then all is well again.
I reckon if you can't have separate houses then at least have separate bathrooms!
Listening, seeing & hearing someone piss, fart & shit before they get in bed with you is
a guaranteed passion killer...