I have to apologize, it has been almost seven months since the screening and my write-up so I’m unable to recall the specific details of the ending. I’m due for another viewing when it comes around on Blu-ray perhaps…That being said, I do remember at the time also being somewhat confused about the ending; and that it was intended to be a bit open to interpretation. The nature of being “in wonderland” seemed to give the story freedom to bend logic and reality some. Also there was that rapid sequence that included multiple events/twists at the end that attempted to explain many things. I remember wanting to “rewind” the film in the theater saying to myself “Uhh, say that again?” So, I would say give the ending another watch and see if you can make some sense out of it. I do believe the film’s editing and story-telling are to blame for your confusion though.
The ending looked like the girl either went back to Wonderland or the guy lived. It’s really confusing whether the ending was even real or not but the people were able to see and hear him so he might be alive after all. This is just the literal view of the ending though.