Step-by-step explanation:
-They become more isolated from friends and family.
-A change in personal taste, such as music.
-They take blame for their partner's bad behavior.
A person in abusive relationship hide their feelings from others and often ended up becoming extrovert. They do not want to share their thoughts with others and pretends to be happy. But really from inside these people are hurt and are irritated all the time.
In abusive relationship, a dominating partner always tries to make changes their partner's choices and likes and dislikes. Also people try to take blame for their partner's bad action and behavior in the public.