I have a I love you question... ❤️

So my question for you all how often do you and your s/o say love you? Can you say it too much where it loses it's meaning? I'm in a long distance relationship and last night when I left his house I said I love you and he just kissed me and didn't say it back? But on the phone he says love you bye. Am I over analyzing this? Help!! 👋