I agree that there are great differences, and that people mistake infatuation for love. But, I don't agree that love needs to be monogamous. There are many people that love multiple people concurrently, even for many many years.

I also don't believe that the fluttery feeling of infatuation needs to fade entirely. We can still feel that for people that we have been loving for years, if we cultivate excitement, never take our love for granted, and remind ourselves that our partners is in fact a new version of themselves, a new person every day that we encounter them.