If anyone one has noticed Cameron has acted a little human in some episodes. It's like when she has to act human she does and when she doesn't than she wont do anything. Ever since the car explosion she has began to act human at random times. But she also acts like she is turning back into a terminator too. Before the explosion John actually cared about her. But now all he wants to do is get away from her. If he felt so bad about her trying to kill him why bring her back. Does he still wonder about whether it was real or not when she had said that she loved him.
No one knows if it was Cameron or the terminator talking. Because she said that she loves him John brought her back. But she did not like it because she does not want to kill John. That is why she does not trust him anymore. Because John constantly lets his emotions cloud his better judgment.