"I love you" should be a little more difficult to say.
There should be advanced language classes revolving around complex sentence structure, advanced clauses and arrangement, complicated syntax, so that "I love you" means more than loving anything else.
Ich liebe dich.
I love you.
Saying "I'm sorry" in German is more difficult than "I love you."
Why is it that in order to apologize for something, I first have to learn about reflexive pronouns, and reflexive verbs, and that the same word for "the" can also stand alone as the subject of the sentence?
Das tut mir Leid is more grammatically complicated than Ich liebe dich.
And yet one wonders why love seems to have become so clichéd.