Are the aforementioned reasons—discomfort, bad manners, excessive audacity, nervousness, materialism, poor homemaking, neglecting to adorn herself for her husband, and disobedience—considered legitimate grounds for separation, or must this wife be dealt with despite his aversion and lack of inclination towards her?

Marital problems are common at the beginning of a marriage due to the lack of understanding between the two parties. Therefore, it is advisable to take time, be patient, and try to understand the wife's personality. Divorce is permissible when there is a need for it due to the wife's bad character, but it is recommended to be patient, manage her affairs kindly, and advise her gently and wisely. Women were created with a curvature, and they will not straighten out. So, either you enjoy her with her curvature, or you break her through divorce. The questioner's statement that love comes through cohabitation and sacrifice is absolutely correct. And if the wife reaches a state of defiance (nushuz), she is to be dealt with as a defiant wife.