You are only looking at the lust side of love Molly...
If you consider "love" in the form of social behavior then maybe you could choose to love someone at first sight. Quick determining at the subconsious level that a person would be useful for protection, social statis and/or procreation.
From original comments made I'm thinking it is a combination of the two from her side and lust from his side.
edit - Do many men approach love from any other way? Maybe social statis... As long as they have "love" in the form of a family/friend structure is there any other reason to branch out?