Why men cheat on beautiful women

It seems that like Sandra Bullock, who publicly thanked then-husband Jesse James at awards shows for his love, and Maria Shriver, who defended her husband, Arnold Schwarzenegger, against cheating accusations when he ran for governor, Huma Abedin didn't suspect a thing about Congressman/sexter Anthony Weiner. So why do men cheat on the world's most beautiful women? "Cheating for the man is about excitement, building up their ego, enjoying the chase and just plain mixing things up," asserts psychotherapist Robi Ludwig, author of " 'Till Death Do Us Part."

-- Bonnie FullerBonnie Fuller is president and editor-in-chief of HollywoodLife.com and the former editor of Star, Us Weekly, Glamour, Cosmopolitan and Marie Claire magazines.

New dog for Selma

It looks like Selma Blair has a new family addition -- and it's not the baby in her belly! She was seen leaving the Lange Foundation in Los Angeles last week with a new furry friend! The actress is still devastated over the loss of her last dog. She and boyfriend Jason Bleick are expecting their first son together.

Is it a good idea to bring a dog home when a baby is on the way, as Selma Blair did? Go to

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and let us know.