Indeed, it is hard to see how cyber simulation could substitute for a fulfilling, loving and physical relationship.

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Strong, who's married, has acknowledged having a physical relationship with Wright after helping her launch her Pure Vida fitness studio by co-signing for her lease and loaning money that was repaid with interest.

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"You know, you get caught up in the emotional and the physical components of a relationship, and the last thing you're doing is thinking rationally, " she said.

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But, perhaps surprisingly, only one of these differences, that in physical activity, proved to have a significant relationship with lymphocyte production.

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The court heard she later described her relationship with Mr Dornan as involving "regular physical and mental abuse" at his hands.

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In 2008, several school employees expressed concerns about the relationship between Leat and a female pupil, which included physical contact such as hugging and tickling.

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