A Perfect Circle - The Nurse Who Love Me (Failure Cover) Lyrics Meaning

I thought about relatively literally.

Patient in a rehab or hospital ward. Likely addiction related.

Say hello, to the rug's topography...

This is the end of the story when he's attacked the nurse or at least when he has her down on the floor face down in the rug. It holds a lot of interest because its all she can see.

The shrinking in her head is her succumbing to unconsciousness.

Chorus is the way he sees his nurse especially thinking that her treatment of him is special

Say hello to all the apples on the ground...

Droplets of blood on the rug that were blown out of her nose).

Say hello to everything you've left behind its even more apart of your life now that you can touch it...

Not really sure there's much to interpret. Just a poetic way of talking about ones life flashing before their eyes, she can touch it because long lost memories are coming back.

I'm taking her home with me...

He's planning to take her with him when he escapes... The pills in a little cup and pharmacy keys seem literal. A normal person would need attention, kindness, etc for love. All he needs is drugs.