Its about a new relationship. Directed to the one who is uneasy and unsure about where they stand. And the other reassuring them it's okay and that they should slowly move forward with less confusion. "the routine malasie" is the inevitable uncertainty of a new found affection "quarter-half the mile" is about takig it too far too far and say they should not worry so much everything else is pretty self explanatory if taken in this conetxt.