SYDNEY: Love actually defies all kinds of logic! When Mary-Kate Olsen isn’t getting mushy with boyfriend David Katzenberg, guess who gets her undivided attention? Her dog!

According to a report The Star, the auburn-haired half of the mega-rich Olsen twins recently took her pooch to trendy Urth Caffe in West Hollywood. She also paid a waiter five dollars to keep an eye on her darling in the patio dining area while she went inside to order lunch.

“Mary-Kate said she was afraid that someone would steal her dog. She sat on the patio eating a salad and tomato-rice soup. She lavished attention on her dog, talking to it and petting it. She had it dressed up in a cute sweater. She really loves that dog,” a witness said.