Yup, you’re 100% correct. I read the Wiki entry for J.C. and he pledged not to run for more than 2 terms, but ran for 4 terms. He didn’t want to run for a fifth.
Hopefully he’ll make his fortune, then return to Republican Politics with a road to the White House.
I also remember his saying that he wanted to spend more time with his family while his children were still young. If I remember correctly, his family stayed in Oklahoma and he went back and forth. Having been a star athlete himself, he wanted to be there to watch his son play football.