I think that its probably true that she was upset that her older son had to leave.
I bet that Kaine would even maybe defensive or evasive about this... simply because then blame could be irrationally laid on him for his missing son. Its not his fault. Who cares if he is a control freak? I'd be a control freak too involving a family of that size. Spouses, ex spouses, spouse's ex's, ex spouse's new spouse, children, half siblings, step children... whatever... If I were a man, I'd run a dang tight ship too.
I don't see him being manipulative... maybe its just a man who's life has had some drama and roller coaster type stuff... who hasn't? Maybe he wants to exert the authority he naturally has as a father and husband. He isn't a wife beater, at least nobody has come forward to accuse him of being abusive. Terri obviously didn't feel that she was unable to leave the house, or do her own thing... or have her own friends. She wasn't on a leash. She could do what she wanted when she wanted, quite obviously.. and he even bought her a beautiful car to do her own thing in style.
My father was a genuine control freak. I was never allowed to spend the night with friends... who I was not related to. No one was ever allowed to spend the night with me, that was not related. I never had a slumber party.. nor attended one. My mother was never allowed to leave the house, other than to the grocery store or work. We were not even allowed to use the telephone, unless he authorized it. No visitors were ever permitted who was not 'family.' I was never allowed to have after school activities... sports. Every thing that ever happened in my young life, my father had to okay it... music, movies, food, games, toys... everything had to be approved by him.
The ultimate goal of a true control freak is manipulation and isolation for a psychological reason. Kyron seems to have a full life. He was not isolated. He has friends, vacations, his own interests. Terri also had the same... she was not blocked access to her own telephone, the internet, a social life, friends, hobbies, whatever... Kaine did not block anyone's feelings of happiness or freedom.
Now. Maybe he was controlling during one press conference during a time when he would have grasped at some control at ANYTHING after feeling so helpless with his child gone. I can imagine a lot of people would do the same. Please give him a break. This broken hearted man is not a control freak.... nothing close.
Anyway, of course Terri would have been upset if her son 'had to leave.' I just wish we knew for sure if that is how it went down. Remember, Kaine said he got along well with her older son. I believe this. Kaine seems like a fun loving guy, who is firm and likes stability... routine... and I can see that as a wonderful attraction to any child... who has had feelings of insecurity or doubt due to family situations.
I think Kaine seems like a great father, husband, and maybe even role model, and if that isn't enough to generate a lot of respect, the fact that he is a victim of every parent's absolute nightmare should.