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HEAD-IN-SAND MOM CHOSE ‘BLIND’ AMBITION DADDY’S LITTLE GIRL

“Clark Rockefeller” (a k a Christian Karl Gerhartsreiter) and his daughter, Reigh “Snooks” Boss, before he allegedly kidnapped her last July.

BOSTON — Sandra “I married a Rockefeller!” Boss wants you to believe she is the dumbest woman alive.

Repeatedly smiling inappropriately and speaking in an annoyingly flat, lock-jawed voice, Boss primly took the witness stand at the kidnapping trial of her ex-husband, who was known as Clark Rockefeller. A guy who never had a driver’s license, Social Security number or visible means of support.

PEYSER: HEAD-IN-SAND MOM CHOSE ‘BLIND’ AMBITION DADDY’S LITTLE GIRL

But he had his sugar mama. And for a long time, believe me, Sandra Boss enjoyed the control she exerted over her “intelligent, charming” husband. A man who was willing to change a diaper or 20. So what if he never had a dime?

“He told me he had quite a lot of money,” she said crisply. She stopped, and flashed a strange smile.

“Sadly, it was encumbered by a lawsuit,” she said. Sadly? Nothing she said made a whit of sense.

The marriage continued for 12 years. Not 12 weeks. Or 12 minutes — which is the average time you would expect a Harvard Business School grad to be fooled by this character. That is, if she really wanted to know.

These were years in which Clark — whose real name is Christian Karl Gerhartstreiter — moved Boss to Nantucket, then Vermont, then to the wilds of New Hampshire. In each increasingly remote place, they bought or rented a “cute, little house,” while Boss commuted to New York on weekdays. It was don’t ask/don’t tell. And it suited her fine.

Then, she gave birth to her daughter, Reigh.

“To leave while I was pregnant made me feel like I wasn’t doing my duty,” said Boss, who claimed she was raised to “work it out” — but whose own parents are divorced.

The father of a girl who went to school with Reigh told me that Clark was the always-present parent, while his Mrs. “thrived” on the fact that she was married to someone called Rockefeller. She finally divorced Crockefeller in 2007. When she moved to London, he flipped and, on a visit to Boston, kidnapped the child.

What did Boss do when the cops found Reigh? Scream? Cry? “I danced around,” she said weirdly.

Some people have no business raising children. I’m not talking about the man on trial.

andrea.peyser@nypost.com