I think this is about the destruction and heartache caused by Jacob's girl with no remorse.
"I've given you the longest of rivers and the longest of rope"
The longest of rope part would be enough to hang yourself with. But she doesn't realize how destructive she's being.
"Knee deep among your wreckage and uncertainty" hints at how much Jacob has to deal with. Wreckage and uncertainty perhaps as to how she emotionally toys within and now he's sick of it.
I think this is about the destruction and heartache caused by Jacob's girl with no remorse.
"I've given you the longest of rivers and the longest of rope" The longest of rope part would be enough to hang yourself with. But she doesn't realize how destructive she's being.
"Knee deep among your wreckage and uncertainty" hints at how much Jacob has to deal with. Wreckage and uncertainty perhaps as to how she emotionally toys within and now he's sick of it.
"I've lost count of the second chances"