Two of my friends are getting married to each other in November. They addressed an invitation to me and my FI. However, My FI and I broke up recently. They are friends of mine, and have met my exFI only a few times. They invited him as my date and out of respect.Now that I am single, can I take a friend as my date? Is that rude? I don't know many other people going and would feel uncomfortable by myself.And if I can take a friend, should I take a friend that they know (but did not invite) or a friend they do not know, so it's not weird?Most people I have talked to said it isn't a big deal to take a different date sine they are friends of mine, but I'm not sure. The couple isn't super picky, but just trying to be polite.