What is the religious ruling regarding a husband who neglects conjugal relations with his wife and does not give her her due, thereby causing her psychological distress?

The husband must fulfill his wife's needs to the best of his ability and according to her necessity. The questioner is advised to speak frankly with her husband to understand the reasons for his shortcomings, and to address any deficiency on her part in adorning herself. If he suffers from weakness or illness, he must seek treatment. Otherwise, she should weigh the harm of divorce against the harm of remaining in that state and choose the lesser of the two harms.