After announcing their split on Monday and finalizing their divorce just hours later, Blake Shelton and ex-wife Miranda Lambert were awfully friendly on Twitter yesterday! What gives?!

Blake started off by tweeting:
    "Hey @mirandalambert can u believe there's people who haven't bought @ashleymonroe new album? Isn't that shocking?!"

Lambert then broke her Twitter silence and replied:
    "@blakeshelton no I can't because it is the best work she has ever done! I love it! We love you @ashleymonroe."

Ashley Monroe is Lambert's best friend, whose new album, The Blade, was released on Friday via Warner Music Nashville. Lambert gave a surprise performance with Monroe in Nashville, on Wednesday, marking her first public appearance since the divorce announcement. Shelton tweeted at Monroe again and she finally replied, "Awwww THANKS GUYS. 😆 love you both. ❤️." So was this some sort of PR stunt? Nope! When a fan wrote that she was "losing respect because of this whole charade," Shelton fired back, "Well rest assured not one sh*t is given."

But that wasn't all -- the former couple continued to tweet at each other, and it seems like they're either still very friendly -- or getting back together! The exes joked about recent photos of Shelton pushing a baby stroller around the Voice studios and Lambert wrote, "I knew it.... You WERE pregnant! This calls for a drink!" Shelton re-tweeted her message and wrote, "Ha!!!!! Busted... I wasn't JUST a fat ass. Drinking shall now begin..."

Interestingly enough, Shelton's drinking was reportedly a factor in their split, so we're not sure why the former couple is joking about it in front of the world! When the two announced their split they said in a statement, "This is not the future we envisioned. And it is with heavy hearts that we move forward separately. We are real people, with real lives, with real families, friends and colleagues. Therefore, we kindly ask for privacy and compassion concerning this very personal matter." We're curious to see where this goes...