To not go to my sister's wedding

[ZerbaPadnaTigre]

I don't like weddings anyway. I'm increasingly getting the feeling that my sister doesn't actually like me from her constant nagging about how I should change.

AIBU to say fuck it and do something more fun like watch paint dry?

It's your sisters wedding day. You must go. End of.

i did not attend my sisters wedding for one reason, I love my sister but my sisters dad sexually abused me and my sister. My mom already had known about this and at an occasion did the same, They all deny this ever happened and i got called a liar, My sister is unaware of the sexual abuse as she was only 3. Even if i tell her they have brainwashed my brothers and sisters telling them i am a liar.
and they wont believe me. We got into an argument one day and she told me i was jealous because her dad was here and mine was not, i held my tongue and said nothing. Her dad was given a dishonorable discharge by the army for unknown reason( he told her that). wedding came along and they were all there i could not bare to sit in a room with fake happy families so i do not talk to any of them

Your sister has always made an effort with you and on her big day you want to not go when it's something that matters to her. You say your sister invites you to things, stands up for you...what do you do for her?

It's all very you-centric.

Everyone does stuff they dont want to do, shes asking for you to watch her get married (you can stand with family) and and go to the party (which you've said you like).

Its beyond selfish and immature that you cant put her first for her one wedding day without all the naval gazing.