How well do any of us really know our friends? You may be confident of the answer to that, feel secure – smug, even – but be warned. One day, a little detail might accidentally slip out, and you’ll suddenly discover they’re not just a stranger, but also a bit weird.

Turns out my friend and her partner don’t have designated sides of the bed. They just sleep wherever, depending on who gets in first, like animals. She did at least have the decency to look........

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