I mean, just look at the cover of 3121, you can tell its all about solitude. There might be nice couches and tables for 10, but no sign of life, thats for sure.
The last picture with the view over the city (L.A.?), whoever is on that terasse gazing over the city gotta be a lonely brother....

Each time I watch the clip "Mister Lonely" I think of him... But he's still surrounded by friends, and he just has to lift a eyebrow to have a girl, isn't it ?

I'm not bitter, and I know what it is to be lonely even in the middle of beloved people.

Now, if he's willing to share his life with his real soulmate, he'll never feel lonely anymore. Cuz I guess she'll be able to entertain him and feed his soul all life long.

There's already a thread on this http://www.prince.org/msg/7/199648