Personally, maybe this is just me,
but this song is more for the past pain we've all been through, Not with love, but anything at all. Once we've damaged ourselves so bad, we question whether anything is really worth putting our hearts on the line for. So we build walls of stone until we find a reason for the walls to be brought down.
Hence
"And every day I add another stone to the walls I've built around you to keep you safe."
Personally, maybe this is just me, but this song is more for the past pain we've all been through, Not with love, but anything at all. Once we've damaged ourselves so bad, we question whether anything is really worth putting our hearts on the line for. So we build walls of stone until we find a reason for the walls to be brought down.
Hence "And every day I add another stone to the walls I've built around you to keep you safe."