Trying to get passed it

At this point, i've taken just about all my strength on wasteing my time being friends with certain people. I've been loyal to them, stood up for them, went out of my way for them and today they still arent a friend to me the way a friend should. I try so hard to not get upset about being left out. I try so hard not to take it personal and i've had my breaking moments but i think if i seperate my self from these people, i'll be alot happier. I know who my true friends are (if i have any left). I dont trust no one right now given recent history. I'm just tired of it, i'm tired of bending over backwards for these people.