Taken at face value, the song is about student sweethearts parting ways for the summer holiday, going to miss each other but safe in the knowledge that they'll see each other again when the summer is over.
But then I noticed a problem in that the song doesn't make sense in Jason's homeland! I then discovered an interpretation that makes sense. He has come to the northern hemisphere to study, and it'll be a "cold, lonely summer" because back home in Australia it is winter.
Taken at face value, the song is about student sweethearts parting ways for the summer holiday, going to miss each other but safe in the knowledge that they'll see each other again when the summer is over.
But then I noticed a problem in that the song doesn't make sense in Jason's homeland! I then discovered an interpretation that makes sense. He has come to the northern hemisphere to study, and it'll be a "cold, lonely summer" because back home in Australia it is winter.