I think the song is about when you're in a relationship with someone you truly care about you still think about them when you aren't together any more. You wonder if they feel the same way about you. There may have been something that happened but you still tried your hardest and if you could you wouldn't change anything that happened. No regrets. You remember what things the person used to do for you and when it's gone you miss it. You have to let them move on and you let them because you care about them. Love hurts.
I think the song is about when you're in a relationship with someone you truly care about you still think about them when you aren't together any more. You wonder if they feel the same way about you. There may have been something that happened but you still tried your hardest and if you could you wouldn't change anything that happened. No regrets. You remember what things the person used to do for you and when it's gone you miss it. You have to let them move on and you let them because you care about them. Love hurts.