When Christopher found out he was angry, not because she had had a sexual relationship with someone else, but because she had been dishonest with him, she says.

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Mr Assemany says his firm will not hire someone just because they are family members.

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"It's akin to someone plowing up a wildflower meadow, just because they can, " says Roberts.

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"He said he'd only 'unfriended' me to protect himself, because if someone flirted with me he would feel jealous, " Mr. Garcia says.

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"The spinoff move is a big step, " he says, because it requires surrendering a portion of the company over to someone else.

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Mr Singson admits that he has also acted as a collector for illegal syndicates, and says he decided to tell all only because Mr Estrada offered an approved gambling concession to someone else.

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"My bias, clearly, because of the specific culture of this company, is to stay with someone on the inside, " he says.

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"Facebook prolongs the period it takes to get over someone, because you have an open window into their life, whether you want to or not, " says Yianni Garcia of New York, a consultant who helps companies use social media.

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