"It took a village to raise this very demented child," Dunham joked, adding, "I also promised myself that if I ever got this chance I would thank Chad Lowe. I promised my mother."
Lowe immediately began trending online, with many social media users wondering why Dunham would have thanked him.
Dunham's backstage explanation was pretty simple:
"Because Hilary Swank forgot. And because I'm an a**hole," the 26-year-old said.
Some movie fans might remember that Hilary Swank, who won an Oscar for "Boys Don't Cry," forgot to thank her then-husband Chad Lowe during her acceptance speech.
The Lowe-Dunham love-fest continued on Twitter:
Congrats to @lenadunham on your Golden Globe win. But, seriously? You forget to thank me?! After all we've been through? I'm shocked.— Chad Lowe (@ichadlowe) January 14, 2013
Dearest @lenadunham YOU COMPLETE ME— Chad Lowe (@ichadlowe) January 14, 2013
I'd also like to thank Chad Lowe.— Christopher Gorham (@ChrisGorham) January 14, 2013
Lowe's older brother, Rob, was also pretty proud:
@ichadlowe What a day-maker you are! FYI I will probably mention you if I ever receive any award at all in my lifetime (and I too am a fan.)— Lena Dunham (@lenadunham) August 7, 2012