Is it permissible, in Islamic law, to hit one's fiancée to discipline her or to order her to pray, and what is the ruling on not paying a divorced woman, especially if there is a lawsuit for alimony filed by her, given that the marriage has not yet been consummated?

The questioner is advised to repent from the usurious loan. Since marriage was legislated for tranquility, affection, and mercy, and since these matters have not been realized in the questioner's marriage, he is advised to divorce his wife, and Allah will provide him with a way out. If he has not consummated the marriage with her, she is entitled to half the mahr, and it is recommended to pardon the obligatory half. However, if he had a valid khalwa with her (private seclusion), she is entitled to the entire mahr, and she must observe the ‘iddah (waiting period) and is entitled to maintenance from the time of the khalwa until the end of the ‘iddah. If a valid khalwa did not occur, maintenance is not obligatory unless the wife made herself available to the husband. As for the fear of a claim of arbitrary divorce, a mediator can be appointed between them to handle the rights, with the condition that no lawsuit is filed.