Adolescent rows, as I saw it. Picking fault with each other all the time, every day a slanging match. She’d scream at him, he’d fling himself out of the house. And yet, Inspector’—she leaned forward and her voice became very quiet—‘all the time this was going on I felt there was something wrong. I could sense the undercurrent of their feelings for each other as strong as ever. The rows seemed… forced somehow…unnatural.

