Infatuation almost can equate to lust. It is NOT love nor being in-love, however both usually start off as an infatuation. Infatuation is only an attraction for another person based only on what you initially see and not what you know about them. You do NOT know that person yet. It is only an attraction to someone based on what you WANT them to be verses who they really are. Infatuation turns to true love or being "in love" when you have accepted that person for who they are: their background, their weaknesses, their strengths, their character, their spirit, their values, their spirituality, where they are going in life, etc.
To prove the difference between infatuation and love is this: infatuation is what leads to the wedding but it is love that begins when the honeymoon is over and you discover the TRUE person you have married after your disagreements.
Infatuation has N OTHING to do with love because you know hardly anything about that person. It's only a form of immiature "puppy love" that occurs in high school. Infatuation does not last, while love does.