My future hubby and I decided to throw an informal engagement BBQ this summer for everyone to attend, so everyone can meet, that sort of thing. We picked a date in July, not realizing it was a friends husbands birthday. We planned and paid for everything for that date. And in the 2 weeks since we've sent out the invites and told everyone to be expecting them, I have heard, "that's my birthday" and "that's my husband's birthday that you picked for the party." Mind you, this is not an all day affair, but a casual BBQ. Can anyone recommend some advice on how to deal with this? I am sick of getting snarky comments.