After talking about getting married for quite some time FH and I got engaged in April. This was somewhat unfortunate timing because FSIL had just announced she was pregnant, but FH had bought the ring several months prior and had the evening planned out so it went on as planned. Well, after claiming they would never get married, FSIL and her boyfriend got engaged just a week after us. Then they announce their wedding will be the same summer as us. I tried not to let it bother me- the world does not revolve around us and this was the timing that works out best for them.
So the other day I look on their registry (registered at the same place about one week after us) and they registered for the exact same sets of plates, bowls, serving dishes and silverware. It's a very unique design and it is extremely obvious to anyone who visits both registries that they are the exact same.
So now FHs parents are throwing them an engagement party and asked us if we want to have a joint one. I love FSIL but I'm starting to get overwhelmed by sharing so much in regards to our weddings. Is it crazy for us to politely decline the shared party?