To me, it can only be lust and nothing else... many people confuse lust with love.
What is love? There are many definitions, but I like biologist Jeremy Griffith definition which is concise and says it all in just 2 words: "unconditional selflessness". This implies sacrifice. And why would you make sacrifices for someone you hardly know and have just met, when there are so many people in your life that you can make sacrifices for, if you are indeed that loving? LOL.