I think love has to be built. The main ingredients ( eg mutual attraction, compatability) need to be there initially and then both couples have to work to build a connection. I don't believe in there only being one person for everyone I think this connection can be built with many people. However both partners need to have respect for each other, compassion, kindness and trust to do so. Love is very complicated and trying to put it into words is very difficult. Once you find the person you WANT to build this intimate connection with I think you have found the one you love.