Love is a very general word that means a lot of different things to different people. Therefore, there are things that are required to survive a relationship that may be associated with love depending on the person’s definition of love.
For instance, if a person wakes up everyday and makes breakfast for their significant other, then that person is showing their love, but they are also being kind and showing other emotions too. Love is probably required to survive a relationship, but it is not the only thing that is required. Work is also required.
Work does not mean that the couple must have jobs. It means that they must do things for their spouse to make their marriage work.