I have been NC with my dad for 3.5 years because he is an abusive bully (verbal and emotional) and one day went too far. I have also been NC with my 'horrible' sister for nearly 2 years for the same reasons. They are both NPD (my amateur dx).
I also have 2 brothers and another sister (all younger - I'm the oldest) who are all unsupportive of my NC and still insist on speaking about my dad to me even though I have told them why I don't want to hear it. They all think I'm being a prima donna tbh and don't understand. It's a simple case of no one wanting to face up to what he's like so I get shot as the messenger. I understand that.
Last year I posted about my 'nice' sister and my DN's 1st birthday as I'd wanted to go to the party but was worried about how it would affect me as the rest of my family were going to be there. I ended up going, at great personal cost, as in the end my dad completely ignored DC and this upset me. I was prepared for this though and felt that I wanted to make the effort for my nice sis.
I was really upset then to be later left out of my youngest brother's 21st birthday celebrations which had been organised by my nice sis. I spoke to her about it and she apologised but said that it was awkward as I'm not speaking to my dad or horrible sis so she didn't invite me.
I have posted before about how I struggle to reconcile being left out of family gatherings just because I am the one that has stood up to the abusive NPD behaviour. I often want to cut contact with the whole family as it makes me feel so shit that I'm on the periphery of the family. On the surface we are all fine and I haven't done this, though I have pulled back on the contact a bit and don't see much of any of them. I have only seen nice sis once since DN's birthday.
So now nice sis is getting married and the crux of it is that I don't want to go to the wedding. I don't want to witness my dad behaving like the perfect father to sis when he is an absolute pig to me. Mostly I don't feel like I want to put myself through that when I get left out of most family gatherings anyway and I'll only be blamed for making everyone feel awkward.
The problem is that if I don't go, I am setting off the bomb and really will end up being NC with my whole family as they'll find this unforgiveable. I haven't had the invite yet, but I know they haven't gone out so there's no chance that I will get off lightly and not be expected to go. It's a fair distance from our house but we couldn't use that as a reason not to go or use DC. There really are no excuses I could hide behind.
I imagine that we'll just go for the wedding and then leave tbh. So I can show that I do care (a little bit) but would find the reception too much to cope with. Do you think that would be acceptable in the circumstances or would my dysfunctional family have a problem with that too?