Horrible Wedding

My sister in law and I were at a wedding (at the time I was her brother’s GF). SIL was considering getting pregnant around the time of the wedding. MOB asks her, “what’s more important to you [her daughter’s wedding] or your pregnancy?” The bride did not stand up for her best friend, and her mom was being awful too. Various other terrible things happened during that wedding planning, but that stands out the most. We’re not friends anymore.