Is it permissible for people who belong to the Household of Prophethood to wrong one another, and how can the wronged person deal with this situation?

The People of the House (Ahl al-Bayt) are not infallible from error and sins; they are like other human beings. You must fear Allah and maintain kinship ties, for severing kinship ties is among the gravest of sins. Maintain kinship ties even if they are severed by others, strive to reconcile disputes, and respond to ill-treatment with kindness, forgiveness, and forbearance.