I'm after some hand holding, really - I'm getting really nervous about next weekend.
I've not seen my parents for over 4 years, and last spoke to them over the phone three years ago - there have been a few letters/cards here and there until their final rejection 6 months ago 
Next weekend, I'm going to a family gathering at the specific request of another family member - my parents will be there, as will my exH who my parents have developed a close friendship with and have supported and favoured despite our very acrimonious split. This is one of the reasons for my estrangement from them.
DD is going to the event with exH, not me; all her contact with my family is through exH. The family member concerned has been very conflicted as to whether invite exH or not, but as he has been "part of the family" (included by my parents) they feel they should invite him, too. ExH has no social skills at all - he will undoubtedly be oblivious to the awkwardness that some guests will feel about his presence - and in fact, I suspect that he plans to use the event as an opportunity to announce his fiancées pregnancy to everyone, including DD (which he hasn't told me about but it's pretty obvious).
My wonderful DP is coming with me - he has never met any of my family despite us being together for over 2 years. I don't feel inclined to introduce him to my parents tbh - why should I? They have refused several times to meet him in the past 
DP & I have booked to make a weekend of it; even if the event itself is awful, we thought we could at least enjoy a couple of nights in a hotel, do some sightseeing etc - but it now seems likely that my exH & fiancée will be staying the same hotel as us
No chance of changing it (only one in the area) - so will have to grin and bear it.
My plan is to maintain a dignified presence for the sake of the family member who invited us; but will undoubtedly be raiding the mini-bar once back at the hotel and end up a sobbing, crumpled mess on DP's shoulder behind closed doors 