Margery Berger realized she wasn't as close to her ex's family anymore after her ex-sister-in-law died.Courtesy of Margery BergerI was close with my in-laws when my ex-husband and I were married.After the divorce, I tried to keep those relationships the same.But when my ex-sister-in-law Barbara died, I realized that things had changedMy sister-in-law died five years after her brother and I divorced, but in my mind, I was still married to the rest of the family.