Love needs to be expressed - don't assume "S/He knows how I feel". Saying "I love you" or other words of deep affection make both partners feel loved. That's why my favorite calligraphy projects are writing those words; and then hearing the heartwarming effect!
Are you lucky enough to have someone you love and who loves you? SAY it! And commemorate those feelings by having them written down- Prints can be made small enough to carry around in your wallet, or cell phone case - just to give you a quick pick me up when you need it!