People real or imagined? ***SPOILERS***

I watched this movie yesterday and have a few ideas/questions, that I would like to put forward.

1.George is first seen in the derelict house and he says he's waiting for his wife/women. Is the house their old family home?

2.George sees his daughter with the black guy. The same guy who walks into the bar at the end of the film?

3. Everyone in the shelter is black apart from Jack.The guy who is sat on his bed, when he arrives at the shelter.

4. The next day jack disappears.

5. George and Dixon go to the restaurant/bar where food is offered. Dixon says he can play the piano. George says he's lying. Dixon takes the food over to the piano and is about to play but doesn't. George goes over and picks up the food and starts eating it.

6. George meets the homeless women. They talk, have some beers and end up having sex. George wakes up alone.

7. Dixon is arguing with the staff at the homeless shelter. In the morning he disappears.

8. In another scene, George is seen playing the piano.

Summary

The house at the beginning is Georges old house and he is waiting for his wife to come home.

Jack the white guy isn't real.

Dixon isn't real.

The women isn't real.

George is suffering from schizophrenia.

Thoughts?