Analysis of He who never leaves

"Amy, are you listening ?", Emily asked.
Suddenly it struck me what was I thinking
"Nothing", I answered.
She carried on with her conversation
Here I'm battling with myself
"Amy no", I said. "Amy yes", he said.
He was taking over my body.
It was coming. No, it shouldn't be
Further, the time goes weaker I became.
All those words I hate the most are echoing in my ears.
"you're no good, a total loser", he continued
I need to spit out this poison
But where?
There she finds where.
She excused herself from the dragging conversation
She waited for it to be out of her body
Screamed in silence
Finally, it stops.
He's gone. She was at peace

The phone rang, she picked up
"Where are you", Emily asked.
She put on a smile and responded

A part of her knew he will be back soon.