You weren’t allowed to like “childish” things as a kid. So you did those things now, as an adult. You enjoyed your coloring, your stuffie collecting, all of it. Though you didn't really realize this was regression behavior.

A small argument about something so minimal led to this.

" GOD DO YOU EVER JUST STOP BEING SO FUCKING IMMATURE? GROW. UP. "

As soon as the words left John’s mouth he realized he messed up. He hadn't even meant it.