"devastated about" is correct and usable in written English.
You can use it to describe someone's feelings of despair or distress over a particular event or situation. For example: "My father was devastated about having to let go of his lifelong dream of owning a restaurant."
According to ESPN Leone wrote on his Facebook page: "Dan is [expletive] devastated about Dawkins signing with Denver... Dam Eagles R Retarted [sic]!!" Similarly in March of this year a Charlotte, N.C., waitress was fired after she lit into a customer on her Facebook page.
I was just absolutely devastated about the election.
I'm devastated about the plight of the ponies.
"I'm truly devastated about what happened to Shoya," said De Angelis.
Andrew Lloyd Webber wrote: "Dearest Dawn & Gary, Madeleine & I are devastated about news of Poppy.
"I'm devastated about the way that this job presented itself," said Cassara, who has known Welsh for years.
The humanitarian consequences have been devastating: about 9 million people (pdf) need humanitarian assistance.
There was, however, something devastating about the way, 27 minutes in, Madrid decided it was time to put them in their place.
Every severe injury is disfiguring in its own way, but there is something uniquely devastating about having one's face burned beyond recognition.
What is both genius and devastating about Hamilton is that it rewrites the history of our white founding fathers through the lens of black and brown Americans.
MANCHESTER, N.H. There is something quietly devastating about the three-day-old slogan of "country first!" that Jon Huntsman's supporters have begun chanting at his rallies and appearances here, including one this morning at a Manchester polling place.
