One in 10 long-term couples keep separate homes – and they have much more sex than those who cohabit. But there are some unexpected downsides …

Name: Living apart together.

Age: At least since Victorian times.

Appearance: Separate beds, busy loins.

Living apart together? Is that where you share a home with your partner, but you’ve become so emotionally estranged that you can feel your connection eroding on a daily basis? No. Why?