I don't think the relationship between novels and realities are one to one. Of course novels play different roles. It's essentially just a long narrative form. What you use that long narrative form for can be very different.

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I'd had a relationship with a French girl a Japanese girl an American girl a Filippina and she was there all the time - a Lancashire girl. I thought: 'It's a Lancashire girl I was looking for. Why didn't I realize it?'