I just spoke to my mom again and convinced her to come with me. We will meet there and go together with my dad too.
Now my mom was upset that nobody told her while the baby was alive and she felt that maybe they don't want her there or they would have told her. But really, my aunt (cousin's mom) told her one brother, who then didn't tell anyone else. I am thinking that they thought he would spread the word to the rest of the family, but he didn't.
So after debating back and forth a hundred times, and my mom trying to justify it with a million different reasons, I realized that she was worried they didn't want her there, but I convinced her that if they didn't want us (us as in people in general) to go, they wouldn't have posted the details on FB, right? As it is, my cousin posted it, and her mom and sister both shared it, making sure as many people as possible knew.
So anyway, we are going. I think the odds that they will be annoyed by our presence (because we aren't close) are very low, and they will probably be glad to see us. I feel good after this conversation with my mom.
I just texted my brother and my cousin M to see if they were going saturday and neither of them knew. WTF mom and uncle? How about you tell your kids those things? I told my parents two days ago and they see my brother every day. And my uncle M's dad is the only uncle who knew the whole time.