An apt quotation is like a lamp which flings its light over the whole sentence.
The love scenes that worked, regardless of the director, were the ones where the actors weren't fearful. When somebody was fearful, you could see it right away. It takes you out of the story, and that's to be avoided at all costs.
I did a film once that I was killed in. It was a painful, horrifying day. It was a wonderful day from the standpoint of acting, but I was a wreck otherwise.