Eh I think that our media like movies and books messed with our concept of love. Everybody expects some crazy emotional reaction for being struck with love and maybe some cheese music mixed into it. Unfortunately humans don't work like that and it is a lot more subtle in the real world.
For me, but maybe I am weird, if you are comfortable with spending your time with the other person and if you are somewhat attracted to them physically is enough. Sometimes even the second part is not required. People tend to overcomplicate things that are not that complicated in the first place.