Teen Mom OG star Amber Portwood has been arrested for attacking her boyfriend with a machete while he was holding their 1-year-old son. She has also verbally abused him on camera (see current season) and has a previous domestic violence conviction for attacking her daughter's father, Gary Shirley, while on camera. As a survivor of domestic violence, I feel MTV is sending the wrong message to its young audience by continuing to support a serial abuser. Having a documented mental illness and traumatic childhood does not give anyone the right to abuse others. MTV needs to take a stand against violence and fire Amber Portwood.