well she ব্যক্ত that the song "is about being with someone আপনি love, and আপনি have to say goodbye, and all the little things আপনি miss about them". The song could also have been inspired দ্বারা her husband Deryck Whibley. Avril didnt intend it to be a প্রণয় song but she was লেখা it as a slow song so it brought out all of the emotion:)
The song was written about her ex husband, Deryck Whibley. Who was her actual husband at the time the song was written. So when Deryck went away somewhere for a bit then Avril missed him and wrote a song about it.