Let me preface this by saying that I love my FI very much, and that I am inordinately thrilled at the thought of spending a lifetime with him.
That being said, there is no one else in the world who can make me face palm so exquisitely.
I've been slowly addressing save the dates over the course of the last week, filling out a few between fits of procrastination as I get updated addresses and names. So today, I decided to be good and pulled up the excel sheet with everything on it, and as I'm writing, my FI glanced over at what I'm doing, and casually remarked, "Oh, [Aunt and Uncle]'s last names are Smith Doe, not Doe Smith".
Me:"What?? What about the spreadsheets you gave me that has their names specifically listed as 'Doe Smith', not 'Smith Doe'?"
FI: "Oh, I must have put it down wrong."
Me: "You what?? Twice? How is that even possible? And then why did you tell me, promise me that it was right?"
FI: *sensing danger* "...I'm sorry?"
FI's family follows Hispanic naming traditions so most of them have two-part last names. It turns out that the last names for at two families were in incorrect order and an aunt's first name was actually a familial nickname (I only caught that one since it was spelled differently on two different lists--and no, I did not accept his answer of "either way's fine"). Between the family name mix-ups and added cards for all the "kids" who are suddenly 18+, I've already gone through my supply of extra save the dates.
He is my sweet, dorky, absent minded partner in crime, and I'm going to strangle him with a churro.