In Terminator: The Sarah Connor Chronicles, Season 2 Episode 2 Automatic for the People, in the beginning of the episode John has the below conversation with Cameron
(As per Terminator Wiki)
John: It's healing quickly. (Inspecting Cameron's wounds)
Cameron: Quicker than yours.
John: What about the rest of you? You're back to normal?
Cameron: Things have changed, John.
John: What things?
Cameron: You can't be trusted anymore.
John: Me? I can't be trusted anymore?
Cameron: You risked your life to fix me. That was a very dangerous thing to do. That could upset people.
John: They'll have to deal with it. (John looks pointedly at Sarah and Derek)
Near the end of the same episode, John & Cameron have the below conversation.
John: about what you said before, about not been able to trust me..,
Cameron: yes..
John: I don’t have to prove anything to anyone, anyone, including you…!!
After that, Cameron leaves without saying anything to John.
So my question is, what does John mean by saying that "I don’t have to prove anything to anyone!"