Visiting his father's grave Chris meets Justin,Sam's old college room-mate,who tells him how his parents met. Emma was a sixth-former and Sam her parents' student lodger when they began dating and she fell pregnant with Chris. Emma nonetheless was able to train as a doctor but after Chris was born Sam told Justin he had deliberately sabotaged the condom so that Emma would fall pregnant and marry him,which is why,out of guilt,he condoned his wife's flirtations. Returning home Chris tells Emma she was right to say that Sam used him.
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