This episode uncovers the science behind cheating and settling down.  This provides tools for the brain to find contentment amidst all the dopamine rush.  Dopamine is a molecule that gives us that spark, that excitement and when that excitement goes away, we have to be able to look at what we can do to sustain the relationship because the passion, chemically speaking, fades.  How do we now nurture the relationship that can outlast dopamine?