Build a movie plot around this: Why do Jane and Eddie get into an argument? Because of Dr. Charles' advice
The answer to this question is:
The movie starts with a voice-over of Jane Goodale (Ashley Judd) over the images of a scientific experiment with a bull and a herd of cows, apparently the bull never mounts a cow twice, not even if her scent is changed. He prefers a new cow. Jane says that until recently, she believed that men are all like the bull, but to understand what happened we have to go back in time. Jane is a production assistant with a talk show that has recently been syndicated, which means that the host Diane Roberts (Ellen Barkin) who wants to be the best, is always looking for the ungettable guests, like Fidel Castro. Eddie Alden (Hugh Jackman) is the producer of the talk show and is a womanizer, much to the dismay of Jane who comments on his actions with amicable critique.Eddie is looking for a roommate, but his messages on the bulletin board are sabotaged by disgruntled exes. He wonders whether Jane would like to move in, but she turns him down with a vengeance. Then they meet the new producer of the show, Ray Brown (Greg Kinnear), and Jane is immediately smitten. She tells her friend Liz (Marisa Tomei) and discusses her bad luck with men. Meanwhile her sister is trying to get pregnant with a fertility program. Ray calls Jane and they spend an evening together and end up kissing. The next morning she calls Liz and is ecstatic. Liz gives her some advice as to how to deal with Ray and his girlfriend Dee (with whom he has trouble). Ray and Jane seem to be very much in love.The relationship evolves, and they decide to move in together. Jane puts in her notice; Ray goes to tell his girlfriend that it is over, but doesn't tell her about the new woman in his life. Ray starts to get distant while Jane is packing to move over, and over dinner he breaks it off, leaving Jane in tears. The next morning in the office Jane takes her revenge by announcing to move in with Eddie. She learns to deal with the many women in Eddie's life. The two bond over scotch and leftover Asian food. She reads an article about the old cow syndrome and starts...