For his sake

"Yes, Paula. I'm very disappointed in you."

Heaven's eyelids drooped as the layer of frost on her countenance returned without concealing it. She tilted her head to the side, scanning Paula's figure and how she sat on the edge of the bed under the darkness of her room. The only source of light that gave them enough to glimpse each other was from the night lamp placed on the bedside table and the light coming from outside the open door where Heaven stood. 

"Paula..." she spoke after a minute of silence. "... how does it feel to sit on the side of the bed, holding pills that you know can kill you?"

"Huh?" Paula's brows rose at Heaven's change of tone.

Heaven should be rushing to her now. Considering Paula already mentioned taking a few pills, she expected Heaven to be frantic while bawling her eyes out. Or maybe Heaven making a scene in fear of losing her only friend. 

Why did Heaven sound so relaxed?