My nephew has invited both of my enstranged siblings to his wedding. His parents and I have not spoken to our sisters in 6 years due to a huge family rift which did involve said nephew. We have absolutly nothing to do with them both as they betrayed and lied to us on numerous occassions and did unimaginable things after our mother's death. We are still ashamed, disgusted and embarrassed by their behaviour. I am heartbroken that they have, behind our backs, kept in touch with them and expect us to attend their wedding knowing the level of anguish this will cause my brother, his wife and I. We all feel betrayed by his actions and are seriously heartbroken that we have been put in this position. We really do not want to attend but it is his son's wedding. What was going to be a lovley day has now turned into a complete nightmare situation. Had he been upfront about his contact with them from the onset we would have been forewarned but to drop this a ten days before the wedding doesn't even give us time to get our head around the sisituation. The atmosphere will be toxic but they will revel in our uncomfortable situation. any suggestions? I am only going to support my brother as I seriously do not want to go.