Erikson's main idea of what happens if you do not master the conflict of a given age (the equivalent of a Freudian fixation) is identity crisis. Each conflict has two parts: the successful outcome one wants, and the negative outcome which comes from failing to master the conflict. Tye conflict of adolescence is identity vs confusion. If one should fail to master this conflict, they will be confused as to who they are, will not feel like they fit in, and will waver between varying personality types in an effort to discover their identity.
The correct answer to this open question is the following.
As your question is so general with no specific reference, we can comment on the following.
According to the organization "Love Is Respect, one of ten students of high school has been hit or slapped by its couple. One in three H.S. students has been a victim of some kind of abuse from its partner. The abuse could have been emotional, verbal, physical, or sexual. And the consequences of these types of aggression last for many years.
Another terrible number is that in one year, approximately 1.5 million of H.S. students have incidents related to physical violence from its romantic partners.
These types of violence start when girls are 12 to 18 years old. And from 16 to 24 years, girls experience the most violent conduct from their partners. And all of this has to change because women deserve the utmost respect.