How can you show him that you love him?
Some people look for that one act which proves one's love; in medieval romance the knight would go out and slay a dragon for his lady, in modern romance people buy each other expensive gifts, but love is reflected in everything you do. The fact that you are interested in someone, spend your time with them, listen to what they have to say, have dinner together, and have some degree of intimacy (even if only a hug) all suggests a loving relationship. The small things of life add up to a relationship. Sometimes there are big things as well. You may be asked to donate a kidney. But that is not necessary to show one's love.