GTRES/FAMEFLYNET PICTURES Michelle Rodriguez is back on vacation in Spain, but she's missing her makeout pal Zac Efron.
Just a few weeks after the surprise new couple was spotted kissing and cuddling during a romantic getaway to Sardinia, the 36-year-old actress was out and about in Ibiza today enjoying some swimming and yachting with pals sans Efron.
While we're not sure what Rodriguez and Efron's current relationship status is, we can't help but wonder if their hot and heavy romance has already fizzled. While we wait to see, check out these five other celeb hookups that flamed out just as swiftly as their flings started.
1. Liam Hemsworth & Eiza González: One day after calling off his engagement to Miley Cyrus, Liam Hemsworth was caught making out with Mexican actress Eiza González in L.A.! The pair, who first hooked up in Vegas, were an item for only a few short weeks.
2. Miley Cyrus & Kellan Lutz: Miley Cyrus and Kellan Lutz had a "quick fling" at the beginning of 2014. Just a few weeks after they originally hooked up at a Vegas party, they called off their casual romance because of "their hectic schedules."
3. Simon Cowell & Carmen Electra: Despite multiple dates together and one very cozy photo, Carmen Electra denied dating Simon Cowell for a brief period of time at the end of 2012. "We're just friends," she insisted. "We've hung out a few times. He's an awesome person. And I absolutely adore him."
4. Justin Bieber & Adriana Lima: Just a few weeks after announcing her separation from ex Marko Jaric in early May, Adriana Lima hooked up with Justin Bieber at the 2014 Cannes Film Festival! The fling was extremely short-lived though and the two haven't been spotted together since.
5: Seth MacFarlane & Emilia Clarke: Seth MacFarlane and Emilia Clarke first started romancing each other at the 2012 Emmy Awards in L.A. They were spotted getting their PDA on several times after but eventually went separate ways a handful of months later.