We had three family friends that didn't show up to our wedding. We had spoken to them about a week before the wedding and they were saying how excited they were to come, etc. So the day of the wedding comes and goes and they are no shows - no call, no text, no card, nothing. Would it be okay to give them a call and ask if everything is okay? I know its kind of passive-aggressive but I would like to know why they didn't even have the courtesy to call and apologize for not coming. Should I just let it go?