Summary: My reason behind Sam letting Dean leave on the docks
He was going to let his brother leave, but not because he was poison. If there was anyone that fit that description between the two of them it was Sam not Dean. No, it was another reason that Sam was letting Dean go and he had to let him know that although he had to be kind of vague about it, because Dean would not appreciate the truth.
The truth that it wasn't just Sam's anger that was causing him to let Dean leave. Although he had plenty reason to be angry and he was angry. However that wasn't the reason for the separation, the reason for the separation was then it would be easier, easier for Sam to do what he wanted to do without his brother watching.
The real reason was that Sam after having seen the things he had seen as a host for the third time was not going to allow that to happen again. Kevin was the worst thing, he could still see in his mind all the time his own hands touching him and burning his eyes out. It was like a loop inside his head again and again with the burning. He had to make Kevin's death mean something, he had to make Kevin's life mean something. He had to make it all mean something, everything they had gone through in the past year, in their lives.
He knew he had said he would drop the trails but after having his brother trick him lie to him continuous for the past few months continually he had decided he was tired of all of this. If he wasn't lying or hiding things from Dean, Dean was lying to him or hiding something from him, it was a never ending cycle between the two of them and he was tired of it. He cared about Dean and knew that Dean cared about him, but that didn't mean either or their lives were above all the people that were dying because of the demons, he saw that now. Besides he remembered now meeting with Death and had he had been willing to die, die and not be allowed to come back. He remembered the feeling he had had, he would have thought he would have been panicked but he hadn't been, he had been at peace for the first time in a long time. So Sam let Dean go because he knew that Dean wouldn't approve of what he was going to do. Sam was going to finish the trails.
A/N: This is just an idea I had after watching; please review :).
