"Love doesn't sit there like a stone, it has to be made, like bread: remade all the time, made new"

The quote implies that love is not a fixed item or feeling, however something that requires effort and attention to keep and grow. It compares love to bread, which need to be constantly remade and revitalized, or else it will go stale and lose its worth. In order to keep love alive and growing, it must be continuously supported and tended to.