Is it silly to treat my sister-in-law as an aunt of outsiders?

Sister-in-law doesn't know or misunderstand her, so she is regarded as an outsider. This doesn't mean that my aunt has no IQ or judgment. At the same time, sometimes family relations are very complicated, which can not be summarized simply by good or bad. There are some unspeakable contradictions or estrangements between Xiao Yan and Xiao Yan, which leads to the different attitudes of Xiao Yan towards Xiao Yan. When dealing with family relations, we should try our best to keep an open mind, communicate more, understand more and tolerate more, and promote family harmony.