"I'm happy with you and Lucy and my plants. I did some bold things during the war, but I'm not ready to die. I didn't have anything then so I put it on the line. I was risking nothing to gain a lot. Harry and Ron have got this Death Eater thing pretty well under control, so now I'm risking a lot and they don't really need me."
Neville didn't realize how resolved he was on the issue until he spilled his guts to Hannah.