Essentially what you're asking is; Can you love someone without being "in love" with them. To be "in love" does require chemistry and being attracted to a person.
Lorie Gottieb wrote a book titled; "Marry Him: The Case for Settling for Mr. Good Enough" I've never read the book but I imagine it is about giving up on the idea of finding the handsome knight on a white horse but instead looking for a man who loves and adores her, has a good education and career, stable, and dependable. In other words he is the guy who looks good on paper with one exception, there is no "chemistry". The marriage is a "practical decision" rather than an emotional one.
To "love" someone means you care an awful lot about them. To be "in love" with someone means you believe with you heart and soul that he or she is "The One". I believe to be "in love" you have to be attracted to the person. However this is NOT a requirement to simply "love someone".