We have no idea of what Kaine said to Desiree when she asked to change custody arrangements; it may not have been a pleasant conversation at all. She remembers it as Kaine telling her it was "not an option."
No we don't. I doubt if it was a pleasant conversation. Kaine had custody of Kyron for 4 years and Desiree decides that she wants him five hours away with her? If my ex came to me with that, I probably wouldn't be the most pleasant person to speak with either. I'd speak with my child(which I do believe Kaine probably did as well, nothing to substantiate this though) and if my child wasn't expressing the same concerns to me, I'd tell my ex that I'm not uprooting my child after all this time...it's not an option.
Jmo