Dating Violence: Should we expect respect?

Based on the video: Dating Violence: Should we expect respect?, what are some “normal” characteristics of dating? What are some “abnormal” characteristics we should watch out for that can represent dating violence? What would you do if you suspected a friend was involved in dating violence?

dating violence: should we expect respect? (links to an external site.), in principles 4, project love. (aquarius health care media, 2006), 27:22 min.