Of course there is difference. Men always look for beauty of his girl and the physical appearance. But in the case of women the appearance only create a half chance impression. They look for care, and how much they are comfort in the presence of her love.
Love at first sight only happens in the case of men. Because they are not care about the characteristic of women but cares how much she is attracting him. Even a smile from her will spoil his state of mind.
In the case of women need a long term relation. Care, respect and warmth touches from her lover.