Faith. She'd managed to keep her namesake while in captivity, but now that she was free? The daunting task of rejoining society was in front of her and it seemed that Marlin had too keep it for her.
Marlin can't help how he feels about Faith, she was remarkably easy to like. The only thing he could do for her was be there, and keep his damn hands to himself, which was the real challenge. Neither one of them knew if she would make it out of the darkness in tact; only time would tell about that.
During trying times, all you can do is hold on and have a little faith