Shortly after we learned that Jinger Duggar is engaged to Jeremy Vuolo, the new couple was flooded with congratulatory tweets, texts and Instagram comments from all corners of the Internet.
Naturally, many of those congrats came from members of Jinger's sizable family, with all of her siblings who are allowed to have social media accounts giving her heartfelt shout-outs.
For the most part, the messages (which, of course, Jinger can't see, as she's not yet permitted to use Instagram, Twitter or Facebook) have consisted of the usual gushing about what a great couple JinJer make, and what great parents they'll be to their 47 children.
But one comment in particular has raised questions amongst fans for an interesting reason.
Jessa Duggar posted the awkwardly screenshotted pic above, along with a caption reading:
"Ahhhhhhhhh!!!!! My best friend (aka little sister) is engaged!!!! Congrats, Jinger and Jeremy!!!!!!!!"
As Duggar obsessives know, Jessa is most commonly associated with her sister Jill.
Not only did the two of them get married and start families around the same time, but their bond is such that the family's spinoff reality show is named after the two of them!
Yes, the other Duggar siblings (well, the ones who weren't involved in multiple sex scandals) are also on the show, but it's titled Jill & Jessa: Counting On for a reason.
Those two were always widely believed to be best friends who just so happened to be sisters.
So it comes as a bit of a surprise to see Jessa referring to her lil sis Jinger as her bestie.
Could be that she's cheating and she's just one of those people who calls everyone her best friend.
Either way, we're guessing Jill feels a little cheated today.