When Williams threw doubt on her reality show relationship with Bryan Tanaka, Cannon said he only wishes for "her to be happy."
Despite the mutual respect for each other, something went wrong and Cannon explained why he believes they got divorced.
"I feel like when two people are in a relationship, it should be about growth. It should be a situation where everyone's becoming a better human being in the relationship," he said. "So when you get to a point where there's no longer any growth and you're not bettering each other -- especially as you're building a household to become one -- I felt like it was probably best, especially for our children, since they're the number one priority, if I could be the best human being and the best father from outside of that house. That's why it happened."