Why does my boyfriend say that a friendship between a man and a woman can't exist?

so my boyfriend says that these friendship between man and woman only exist either if the guy is gay or he is a devoted christian if not he will just want to get a grip of her panties,that usually these so called friendships is because either the guy or the girl wants something more from the other than just being friends,and if its the man that wants the friendship he is not gonna think with his upper head,instead he will with his lower and want something more..,Do you think he is right in his opinion?