In standard international Morse code, "I love you" is represented as: .. ._.. ___ ..._ . _._ _ ___ .._. Breaking it down by letter: I (..), L (._..), O (___), V (..._), E (.), Y (_._ _), O (___), U (.._). When communicating this, a short gap is left between letters and a longer gap between words. Interestingly, in "ham radio" shorthand, people often use the code "143" to represent "I love you" (based on the number of letters in each word), but the Morse dots and dashes remain the most iconic way to transmit the message through light, sound, or text. If you are using the common abbreviation "ILY," the Morse code would be: .. ._.. _._ _.