If Miguel and his wife were standing at Jebeca's side for their nuptials, it makes even more sense why they'd be concerned at their devastating news. And why Rebecca and Miguel might eventually take solace in one another years later.
Jack: No. You don't do that to your family. You find your soul mate, you get married, you stay together until you die. Period. Rebecca: It's not always that simple. Jack: It is to me. Rebecca: Not everyone's you.