Because your sister-in-law is your husband's own sister, it should be said that it is normal for him to care about his brother's family. As for you, you are all family. If she wants to ask about your family, let her ask. Nothing will happen if you are noncommittal. It's boring if you haggle over every ounce. It should be said that the relationship between aunt and sister-in-law is also difficult, but as long as you have a clear conscience, sister-in-law will not treat you as anything, so it is wise to make good relations as a family. If the family is not United, the influence will be bad.