Jack and Jill live together and have a romantic relationship. Occasionally they get into screaming matches that escalate into pushing. This is considered

Intimate partner violence.

Explanation:

Jack and Jill occasionally getting into screaming matches that escalate into pushing is considered intimate partner violence. Intimate partner violence is physical, or sexual violence by a former or current partner. It also includes psychological violence. This is a very serious public health problem. Women are the primary victims of this violence. Physical violence includes punching and pushing among other ways of physical damage. Threats and other ways of inflicting emotional damage are usually the first types of abuse.