If you watch the documentary on Fitch, he cries after the GSP fight too..
Honestly, i think GSP may be one of the smarter fighters in the business. Whether we like it or not, it is a business and every time GSP wins a fight he makes millions of more dollars. Because of that, he plays it safe and fights the way he fights to protect his business and future. No one has been able to change that. If you want to change that, knock his a$$ out or tap him out, you will not decision GSP.
Most fighters are simply not that smart, their ego is in charge.
Hats off to GSP for being the smarter and therefore, most successful fighter of all time ( and probably the richest).