Credit: MTV

Get the tissues ready, Teen Mom 3 fans! In tonight's all-new installment of MTV's hit docu-series, we get a heart-wrenching glimpse into the aftermath of Katie Yeager's messy split from her baby daddy Joey Maes. Just three days after breaking up, Joey gives Katie a letter revealing that he's already moved on.

And if that's not skeezy enough, Joey doesn't send the letter to Katie via snail mail but rather invites her over so she can read it in front of him. Really, dude? That's just creepy!

Katie immediately drops the letter to the floor, grabs baby Molli, and heads to the door. Joey clearly doesn't understand what he did wrong, asking "Why are you leaving like this?" as he proceeds to follow her out to the parking lot.

"Go away please," Katie says, securing Molli in the backseat. But Joey's not too quick on the uptake (get a hint, buddy!), and the longer he loiters awkwardly next to her car, the harder it is for Katie to keep herself composed.

"It's nice to know how much these past two years have f—ing meant to you 'cause it didn't take you long to f—ing move on," she finally blurts out, holding back tears. "It's been freaking three days!"

Joey's response? Check out the sneak peek clip below to see what he has to say for himself, and don't forget to tune in to Teen Mom 3 tonight at 10 p.m. ET on MTV!

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