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While this might have come as a complete surprise to most parents, Clare quickly put two and two together.

"I bumped into William McNamara in Blackpool looking at the big dip of a wooden coaster there. I put two and two together immediately," he said.

And will Belinda, who spots Greg sitting across the restaurant, put two and two together?

“It was such a small ad, I don’t think anyone put two and two together,” a source told Variety.

"Retrospectively, I can put two and two together, which at the time you don't really think," he said.