Lust is ... (according to the dictionary)
1) intense or unrestrained sexual craving, or
2) an overwhelming desire or craving.
http://www.gotquestions.org/what-is-lust.html
Love is ... (according to the Bible)
"Love is patient, love is kind. It does not envy, it does not boast, it is not proud. It is not rude, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. Love does not delight in evil but rejoices with the truth. It always protects, always trusts, always hopes, always perseveres." (1 Corinthians 4-7)
When you love someone and want to have sex with them is that considered lust?
-Wanting to have sex with them is, IMO, considered lust. Also, IMO, it is only natural to want to have sex with someone you love (romantically). Do I want to have sex with my future husband? Yes! But is that desire unrestrained? No. We're waiting. Since the desire is there, though, I guess we're guilty of lust.
When people 'hook up' on the college scene do you think they actually love their partners?
-Not for one night stands - I think these are scenarios where people are acting based solely on lust. However, I do believe that people who engage in premarital sex while in long term relationships do love their partners a lot of the time.
Things are always black and white as to whether or not a person loves or lusts after someone else. It is more an issue of which emotion (love or lust) is dominant that determines how they treat the other person.