Originating from a self help book and referenced most in recovery, it refers to the euphoric and joyful feelings often of an over confident and positive outlook ignoring the reality and major obstacles to come. Often short lived leading to falling hard.
John has removed all parts of his life including his friends pretending like none of it even happened. He's obviously pink clouding.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".