It's Okay if You Can't Save Me- Nalu

Lucy: "You know, it's okay if you can't save me. You know you won't always be able to catch me. Just please save everyone else, Natsu."

Afterword...
Natsu: "I know you told me to do it, but... I really wish I hadn't have listened to you."

Here's another Natsu and Lucy Fanart inspired by the 12th opening of the Fairy Tail anime . I guess you can infer that this is the result if Natsu wasn't able to catch Lucy in that scene or some future disaster in the manga happened.

©Fanart belongs to
©Natsu and Lucy belong to Hiro Mashima!