I think this song is about two people who keep falling into each other despite not being in an actual relationship. Instead of trying to move on, they "forget what the future has" - forgetting any future relationships and:
"Now lets make our lips an accident, on the corner of came and went" makes it clear along this is a physical relationship. "The rules are so cruel" is about the 'rules' of a casual hook up - it still hurts everyone's feelings, but for now they "take the day off".
And the last line, "I think we all know the words" -- they've been here before, they know what the other will say and do already and how it will end.
I think this song is about two people who keep falling into each other despite not being in an actual relationship. Instead of trying to move on, they "forget what the future has" - forgetting any future relationships and:
"Now lets make our lips an accident, on the corner of came and went" makes it clear along this is a physical relationship. "The rules are so cruel" is about the 'rules' of a casual hook up - it still hurts everyone's feelings, but for now they "take the day off".
And the last line, "I think we all know the words" -- they've been here before, they know what the other will say and do already and how it will end.