getting rid of negative influences

I had to remind myself that when some people reject you or are not there for you that is God moving them out of your life.  The Bible says when God opens a door no one can close it and when God closes a door no one can open it.  According to one of the life lessons on the Oprah show negative people are a drain on your life energy.  I noticed after dealing with a couple of people that I need a lot of positive reinforcement.  The reason for that is I am receiving negative messages from them.   The negative messages are things like you are not enough, it is all about them, and I am not as good as them.  It may not be with words but it is with their actions. Maybe the reason that I keep needing to be built back up is because they are taking something out of me.  Basically, the best thing I can do for myself is to separate myself from them no matter who they are and regardless of what they are supposed to be to me.
That is the requirement that I will have to make for myself.  Anyone that I spend any amount of time with will have to be a positive force in my life.  If not then I can just do without it.  
That may be part of the reason that I have struggled with eating disorders.  Binge eating is having a reliance on food to deal with or not deal with the stressors in our life. Another way of putting it is that is our drug of choice.  Ridding myself of the influences in my life may help me to move towards healing.  I will put a conscious effort to not only move away from the negative but to seek out the positive. 
I think that some people are miserable and they deal with the world out of their misery.  They contribute negatively to the world around them to relieve themselves (temporarily).  They just don't do the work required to make themselves or their lives better instead they intentionally poison the world around them.