Miscommunication

"Your cousin is hosting a lunch next Wednesday, dress nice." my mom says on the phone. As the date gets closer I begin to realize I may not be able to make it to the lunch, but it's just a lunch right? I don't get to see my cousin very often so I decide to make time to see him, and I clear out my schedule. It's Wednesday and I remember my mom telling me to dress nice, but I didn't really want to dress up so I put on a park of navy blue slacks,  a white blouse, and a black blazer. As I get to the restaurant the host asks me if I was here for the wedding party. Confused, I politely corrected him and just asked him where the rest of the party was seated. He took me to the back of the restaurant, into a secluded room. As I walk in, the first thing I see is my cousin in a suit, sitting next to a women dressed in white. A white wedding dress. This was my cousin's wedding reception, it was not an ordinary lunch. I walk up to my cousin and his new wife and congratulate them. I see my brother and the rest of my cousins and I sit next to them. Shocked, I asked my brother when they were engaged, and more importantly when they got married.  He tells me they were engaged a month ago and they got married today. I was not expecting to come to a wedding reception or else I would have dressed much nicer. I sat there, absorbing all of the news. I probably took me an hour to finally accept the fact that he was actually married. Of course I was happy for him. I was so embarrassed because it seemed like I was the only one who did not know this.