This song is about someone who met his/her former girlfriend/boyfriend.
"I wondered how you still remembered me, I heard you settled down and that you married happily" he/she know if his/her ex have married but figured out if his/her ex still remember him/her. He/she didn't expect will meet his/her ex, while guessing if his/her ex doing well after breakup. He/she wishing all the best to his/her ex.
The chorus tells if he/she wish to go together, sharing good old memories when still together while don't care about their mistakes, failures and glories. However, when the day comes, he/she have to keep moving on from those memories.
This song is about someone who met his/her former girlfriend/boyfriend.
"I wondered how you still remembered me, I heard you settled down and that you married happily" he/she know if his/her ex have married but figured out if his/her ex still remember him/her. He/she didn't expect will meet his/her ex, while guessing if his/her ex doing well after breakup. He/she wishing all the best to his/her ex.
The chorus tells if he/she wish to go together, sharing good old memories when still together while don't care about their mistakes, failures and glories. However, when the day comes, he/she have to keep moving on from those memories.
[Edit: Typo]