An entry in Grim's journal:

"Nel. It's killing me. You always said I was stronger than I knew, but I don't know how to be strong without you. Harry told me to trust in the Aurors, but they are failing. Miserably. And they are staying so safe...

Everything is by the book. If there was something I could do... some kind of magic to bring you back, I'd use it in a heartbeat."