Divorce takes a very long time to heal from. Most people may initially feel a "high" (a sense of relief the stress, conflict, legalities and all the trappings a divorce brings are over) but eventually reality sets in.
A marriage is one, if not the most, significant R you will ever have in your life. People tend to ignore the "science" that goes along with divorce but the facts remain... while 50% of marriages end in divorce more than 60% of people regret divorce. The timeline of regret is different for everybody.
And regret certainly is situational. Regret surrounding affairs, dishonesty, lack of communication, verbal/emotional abuse during the divorce proceedings and the general long term pain a divorce causes. Divorce is not a neat and tidy package no matter how rapid the process might be. The legalities might be over, neatly tied and filed away but the emotional side of divorce lingers long after the attnys are done.
Rushing to a divorce does not make the process less painful or the aftermath any easier. And most people learn that the very hard way.