Being on the same page

In order for relationships, friendships, etc to succeed, it's important for all parties to be somewhat on the same page and for everyone to fully accept their responsibilities in how the other parties feel. This helps avoid the old, dark sides of people to come through. Lately, I feel that I'm not on the same page as others and I feel like I'm being taken for granted. Now, I understand where the other parties are coming from but what I don't think that they realize is exactly where they're coming from is affecting me and us. I hope that the other parties really understand what they have in me as a friend, etc before it's too late.