I liked it, however....
There are some unexplained plotholes/ issues left unresolved.
Jake never explains the reason he signed up last minute for the same hiking trip as Helen. Was is it because he was losing his eyesight or to see her? Did he knew she was going? Was it both?
Jake also never explains what the whole "girl back at home" thing meant. We're to assume he was talking about her, but it's never explained, and he just shows back up after she left pretty much for that reason.