It's pretty simple; the love is broken.
It hasn't disappeared, not yet anyway, but it's definitely broken.

Something that once blossomed and grew, has now been kicked and spat on.
Beat up a few times.

It's a bit hopeless, trying to fix it.
You know you should just leave it be, go find a new kind, but you can't. The love is still THERE.
It's bashed and bruised and bleeding, but it is still there!
And the thought of leaving it is dreadful.
But sticking by it is driving you crazy.
You're conflicted. Angry. Sad. Troubled.
It's Broken, and it seems as if you can't fix it.
But it's still there, and you can't bear to truly leave it...