This is the story of the day on the Internet. It's showing up everywhere.
But there is no way this is true.
A guy upgrades at the girlfriend position and then he decides to use the ex for his next dentist appointment? Sure, go ahead and sedate me and take that big ol' drill over there and just go to town on my mouth. I trust you. What could go wrong? There's no way you'd let that female broken heart of yours to impact your professionalism, would you?
Guys can be dumb, but they're not that dumb.