Infatuation is more of a total devotion, where as with love, there's not a total submission of our self to the other person. With love, we retain our individuality, and don't always go in the other person's direction. We are willing to disagree, ask for things, and refuse things. There is more sharing involved with love. With infatuation, there is an element of pretend.
Infatuation involves a narrow perception of the other person.
It may focus on only one quality, such as physical appearance, popularity, intelligence, or athletic ability. Love, on the other hand, views a person in a broader, more balanced context. It takes into account areas of strengths and areas of weakness. It goes beyond playing roles. Infatuation can be fun, and may eventually lead to a deeper love relationship, but infatuation is not stable enough nor long lasting enough to form the basis of a mature relationship.