Ringing in my head

This song i intro below (heart of the matter) was ringin' in my head last nite... kept dreamin' abt it, esp this part...

I'm learning to live without you now
But I miss you, baby
The more I know, the less I understand
All the things I thought I figured out,
I have to learn again
I've been tryin' to get down to the Heart of the Matter
But everything changes
And my friends seem to scatter
But I think it's about forgiveness
Forgiveness
Even if, even if you don't love me anymore