Love is a decision, it is a judgment, it is a promise. If love were only a feeling, there would be no basis for the promise to love each other forever. A feeling comes and it may go. How can I judge that it will stay forever, when my act does not involve judgment and decision.
There are things you do sometimes, actions that you take by obeying sudden impulses, without stopping for even a fraction of a second to think, and then you spend the rest of your life either lamenting it or thanking yourself for it. They are rare, unique, and perfect moments.
To be careless in making decisions is to naively believe that a single decision impacts nothing more than that single decision, for a single decision can spawn a thousand others that were entirely unnecessary or it can bring peace to a thousand places we never knew existed.