I am multilingual and know a bit of other languages. I know some of the ancient Languages a bit Persian, Sanskrit and Arabic.
A lot of these languages have two words for love. One is the normal kind and can be translated to love directly. Then there was a second word for love, which surprisingly had no direct translation to English. In fact the only word that comes close to describing love in the the second form was actually obsession.
In that form love actually means - 'when every fiber of your being becomes focused and fixated on on particular point '.