How can one deal with the hatred of the heart that has affected acts of worship and family relations, as a result of an attempted sexual assault on the wife by a relative, and the refusal to forgive him?

It is advisable to conceal the matter and not disclose it to avoid damaging reputations, and because accusing people is not a trivial matter and requires clear evidence. If the matter is confirmed, there is no harm in shunning and abandoning the man. If he repents, it is advisable to forgive him to preserve companionship and kinship ties. As for the mother and sister standing with him, it may be because they believe he is wronged or that the matter has not been proven against him, hence it is not permissible to sever ties with them. It is advisable to pardon and overlook, and to prioritize the rights of the mother.