To me, it can be interpreted in two ways. The first could be about a boyfriend. It seems like they promised to be "together forever" and that didn't happen. But...it sounds like she's happy with that and will even let him know how she's doing from time to time.
The second way I just thought of a few minutes ago. I got into a fight with my ex best friend. And this song just reminds me of her. I'm not upset that she's not in my life anymore, but if she still cares I'll let her know how I'm doing every once in a while.
But...yeah. That's just my personal interpretation of the song
To me, it can be interpreted in two ways. The first could be about a boyfriend. It seems like they promised to be "together forever" and that didn't happen. But...it sounds like she's happy with that and will even let him know how she's doing from time to time.
The second way I just thought of a few minutes ago. I got into a fight with my ex best friend. And this song just reminds me of her. I'm not upset that she's not in my life anymore, but if she still cares I'll let her know how I'm doing every once in a while.
But...yeah. That's just my personal interpretation of the song