Lyric discussion by andrewt@rcn.com 

Cover art for As If Set Afire lyrics by Acacia Strain, The

I think he's writing about living with someone who is a burden, though it's cruel to admit. This person dies and he doesn't care because now he has time for himself. Sounds like he was caring for a parent or grandparent. It's cruel, but that's what I got from face value.