This question involved the balance between personal feelings and ethics. There was no fixed answer. However, as a fan of online literature, I can provide you with some helpful ideas. In literary works, there are often complex emotional relationships that can sometimes destroy family and moral norms. In this case, the author would usually explore the consequences of this emotional relationship and try to find a solution. In your story, you and your sister-in-law may have developed some kind of affection. This may be troubling for you, but you also need to consider the negative effects of this relationship on you and your family. You need to seriously consider your own feelings and whether this relationship is worth the risk. In addition, you also need to consider your relationship with your sister-in-law. You need to consider whether your interactions with your sister-in-law will hurt others such as your wife or family. You need to consider whether your actions will lead to family breakdown or moral condemnation. Finally, you need to consider whether your actions will affect your own happiness. If you feel unhappy or unable to get out of this relationship, you may need to consider giving up your moral bottom line to protect your feelings and happiness. In summary, you need to seriously consider your own feelings and relationships, as well as whether your actions will affect the happiness of others and yourself. If you decide to give up your moral bottom line, you need to make sure that your actions will not negatively affect yourself and others.