Rex USA 1 / 7

Well that was quick!

After being spotted on a dinner date in Hollywood in August and then vacationing in Mexico over Labor Day weekend, recently reunited exes Minka Kelly and Wilmer Valderrama are done, reports Us Weekly.

On Wednesday, August 31, photogs caught the former "That '70s Show" actor and the brunette actress on a low-key date to Palms Thai restaurant in Hollywood. Soon after their date-night photos hit the Internet, the two jetted off to Cabo San Lucas, Mexico to spend some time together. The duo were photographed sunning themselves in Cabo San Lucas on Friday, Sept. 2.

However, Us is now reporting that the twosome are dunzo. "They stopped dating," said the source. Guess that trip to Cabo didn't go so swimmingly!

A source told Us that the exes, who dated briefly in 2012, started seeing each other again about a month before they were spotted grabbing some grub in Hollywood. An eyewitness told Us that what was going on that night definitely "looked like a date."

The former "Friday Night Lights" actress recently denied any romance between the two when she did an interview with Power 106's J Cruz and Krystal Bee. The actress said, "He's a good friend to me. Wilmer's a really, really good person … And any woman would be lucky to have him."

Kelly was pretty elusive when talking about her relationship with the funny man, but she said, "It's funny — he's not my ex. We are good friends, and we always have been. We're not exes!"

That doesn't mean they weren't friends … with benefits!

Valderrama's so-called split with Kelly comes after his June break up with Demi Lovato after being together for six years.

The longtime duo broke the news to fans via their Instagram pages by posting a message on June 3 that said, "This was an incredibly difficult decision for both of us, but we have realized more than anything that we are better as best friends …We will always be supportive of one another."

Maybe it's time for Valderrama and Lovato to pull a Tyga and Kylie and get back together?!