Love and lust are two terms of great importance. These are defining terms of interactions between men & women. However, these two terms have widely different meanings.
Lust is generally a sexual attraction between two people. Lust is basically a chemical attraction between two people, one that can be attributed to primal nature - the urge to reproduce. This attraction is normally what brings two young people together - a more sensual instinct.
Love is more complicated. While it is not entirely separate from lust, the two are distinctly different. When one person loves another, they do not look at each other and think solely of sex - this is lust. While two people in love may have this feeling, they will most likely feel a sense of care, a feeling of security, and an urge to simply pass the time with their loved one. This urge is generally found by people more advanced in years. This is because the more mature are not entirely overtaken by lust, and have the intellect to find love in a person through their personality, not just their attraction.
Essentially, when two people strongly want to be together, this can be from either lust or love. It is lust if they feel hormonally attracted and love if the two simply want to be together.
It is quite possible that men & women see these two terms differently. Women are generally less motivated by lust than men, and thus can understand the difference, and probably would have similar views as here. However, men are more influenced by hormones & continue to feel lust through their life, thus making it difficult to distinguish between the two, and thus combining the two together. In the end, lust and love are interconnected, but their individual significances make huge distinctions.