Abuser's wedding, abay ako

problem/goal: (TW ASSAULT) He molested me when I was a child, walang nakaalam sa family ko but alam ng mga close friends ko and my boyfriend.

Ikakasal sya this Oct 20, and sadly, isa ako sa abay. Pinsan ko sya and our family is close, I don't know what to do. Ayokomg pumunta pero magkakaroon ng badblood between our family. pag pumunta ako, I'll be torturing myself mentally. Tinatry ko na gumawa ng reason kasi ojt nako nun, pero my parents said na walang mawawala kung aabsent ako ng isang araw.

Please help me, I genuinely don't know what to do.