This one's a doozy, too.
According to a report from Celeb Dirty Laundry, their friendly exchange means that Demi of course is coming between Sel's friendship with Taylor Swift.
The site claims that Taylor was "not happy at the thought of Selena sharing her affection with another singer," adding that Tay "seems to want Selena all to herself, or not at all."
How cray is this ish sounding so far? Well you're in luck...there's more.
A source told the site: "Taylor wants to be everyone's BFF, and she freaks out if she is not the most important person in each of her friends' lives." Taylor also reportedly "goes out of her way to exclude you" in her "jealous mean girl rage."
Sorry, we're totally snort laughing right now over the idea that Taylor is jelly of Demi and Selena at all. Tay just had Selena on stage at her recent LA concert...and, well, Taylor and Demi have been chummy in the past too.
As you'd imagine, this whole piece of goss is totally fake, with a source close to Taylor and Selena telling GossipCop.com that it's "stupid" and "untrue."