DEAR ABBY: My best friend is getting married next year and I am supposed to be the maid of honor. I am Jewish, and she scheduled her wedding on the first day of Passover. This also means her rehearsal dinner will be during my family’s first Seder. How do I explain to her that for the first time in my life, she has broken my heart? It seems her family doesn’t understand that Jewish holidays are as important as theirs. She is asking me to choose between my beliefs, my family and our friendship. What do I say to her,