How does Orin treat women?

Orin has a strange relationship with women. For example, when he sleeps with the Swiss hand model he had just met her and he is considerate of her. In general it seems that he is caring and reassuring when it comes to women. Still, he is unable to maintain a positive and long-standing relationship with a woman since Joelle. He is unable to commit, and he usually does not use a name to refer to a woman.