Is a person considered disobedient to his mother if he quarrels with her and yells at her after suffering from her continuous beating and humiliation since childhood, and he refuses to reconcile with her despite her attempts to deprive him of food, all while she is pressuring him financially and emotionally regarding his future and marriage?

It is not permissible to abandon one's mother or to shout at her, as this constitutes forbidden disobedience. Even if the mother is unjust, that does not permit disobeying her. The questioner must repent and apologize to his mother, and not abandon her. He must strive to be dutiful to his mother as much as possible. However, obedience to her is not obligatory in delaying marriage, or in demanding a luxurious house, a car, or travel. If he is able to marry, he should hasten to do so to protect his chastity.