The phrase 'I love you' is being overused by enunciating it in situations not suitable - moments in which these words mean nothing relevant. The expression is too high-minded to terve the lie, then it must ton be used when the affection does not occur. Simultaneously, when the phrase is sensible, noone needs actually using it as it is self-evident.
Thus man should not express one's emotions and feelings using words. When he needs that - it is a lie. When the qualification of the truth is fulfilled, then there is no point reassuring.