I went to the wedding reception to disrupt the party for the bride and groom
Don't you think its inappropriate to disrupt someone's wedding?
Like I even care.
It's rude to disrupt someone's wedding party. Weddings are meant to be a special occasion for the bride and groom. They'll be angry at you and may have you kicked out for ruining their special day.
It's not my fault they related to each other. They knew what they were getting into...
You can't blame them on a lie of they were related before they got married to justify yourself. Wedding can be expensive and people want to make sure their friends and family get a good experience without drama.