How can members of the opposite sex fall in love when men and women are so different?

We think differently, we act differently, we talk differently we do things differently. How could we possibly get along with this person if they were the same sex as us. So how being the opposite sex changes everything. Doesn't it all come down to sex?How can members of the opposite sex fall in love when men and women are so different?It may be opposite sex, but we are all people you know!