Love alone is not enough. Love needs ex<x>pression.
Yes, there is more. Both people have to be happy with themselves, and be able to pursue things that make them happy, separately and together. Otherwise the relationships will sort of implode.
a functional relationship is constant work
20 some years ago I used to and was told 5 years ago was that there needed to be more I have learned there needs to be more than just love since then