Strong Fences Make Good Neighbors: Building Personal Boundaries

"I just don't understand why my boyfriend treats me like dirt!  I know he has someone else on the side, but there's nothing I can do about it..." 
"I hate it when my roommate takes something from my room without asking...how do I get her to stop (or do I need to move out)?"
"When my girlfriend gets mad, she gets in my face and screams and calls me every name in the book.  Then she trashes me