Family tradition causing tension between in-laws

A picture calendar tradition has become a point of contention between a woman and her sister-in-law. The woman feels that the sister-in-law is given preferential treatment by the family and is being excluded from the family tradition. The sister-in-law has taken over the tradition by including herself in the majority of the photos, and when the woman tries to stand up for herself, it causes tension. This year, the sister-in-law has taken control of the calendar and has excluded the woman and her son from most of it. The woman feels hurt and upset and is considering refusing to participate. However, after posting her story online, her husband became aware of the situation and is now standing up for her. The woman is torn between her love for the family tradition and her desire to be included. The situation has become a family affair and has caused tension between the couple and the in-laws. Will the family be able to come to a resolution and include everyone in the tradition? Or will exclusion and tension continue to be the norm?