Parasites and Hypocrites

I'm being used and I know it. Still, I let them do it. They need me for their purpose and I can feel it. Still, I let them continue it. They get hurt when they see me being used by other people and they tell me fight back and let it stop. I did as they told me, and now, they were all mad at me. They say that I have changed. I wanted to scream in frustration. Everything seemed messy. I want to tell them that I am being hurt whenever I am used, but what hurts me more is when I see how they avoid me because I hurt them when I said "You parasites are hypocrites!" My problem? I'm too soft to say no.