about the cold: plot aside, this guy is overworked, getting around outside in the graveyard shift blasted by cold air, eat near expired food and ramen in daily basis, has a wonky sleep schedule and had never use ac before
about the guilt: i think his poop blocks the 300 dollar shower
rereading this, still broke my heart, and that dialogue with his mom hits even harder reflecting on the previous chapter that shows us his core is brittle