Here is a question for you. If you would like to answer, please do so in the comments and explain your answer.
Imagine a man in a crowded night club where singles go to pick up other singles. He walks up to a woman he has not met and introduces himself, then asks, "Would you like to have sex with me?" She says no and he leaves her alone. He goes to another woman and does the same thing. He asks every woman to whom he is attracted in the club. Eventually, a woman says yes. They leave the night club, go to his apartment and have sex.
Has this man done anything immoral?