Thoughts are either good or bad. Some may be intense while others may be of mild nature. Sometimes thoughts even linger and stick for so long and feel as if they will never fade away or completely stop. Those are usually the bad thoughts or negative thinking. I would assume that one would need some sort of closure to be able to let go of the thought completely. What happens if the negative or bad thought comes around because of someone else? Imagine someone doing something behind your back and then looking in your eyes every day from there on out acting as if nothing ever happened? What about when you find out the news from the other party involved and you confront the situation and get lied to over and over again? Maybe you should just say nothing and leave right? Or stay and put up with it because no matter what you do or say, no matter how many times you try to communicate the situation and try to get the other person to confide in you, the person does not budge one single bit. For example, you get approached by some chick that states she screwed your man, described things that only a person who was with him would know, and then told you that he told her she was better than you? How would you react to that? What if he made you question your perception of reality and literally kept telling you that it was all in your head, and that you were wrong. Robotic-like responses every time. And then when you told him that if that were the case, help them through it and if it came down to it, reassure that person no matter what it took. Open access to phones, passwords to accounts, even counseling. Remember he did ask you to marry him, he was there when no one else was, but everything took a turn for the worst the moment he felt you gave him a reason to start lying to you from there on out. About basically, EVERYTHING.