Shocking Summer Splits 2015: Who Couldn't Stand the Heat?

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The summer of 2015 has been absolutely epic for celebrity breakups.

As the temperatures rise, the tensions in these famous households evidently boiled over as well, with many relationships fizzling out.

The past three months have been an absolute graveyard for stars' romances, and many of them ones we thought would never fade.

Here's a look at the casualties of this summer - defined for these purposes as Memorial Day-present - that we'll always remember.

Even if for many, it's one they'll likely wish they could soon forget ...

1. Gwen Stefani and Gavin Rossdale

Gwen Stefani and Gavin Rossdale
Long regarded as one of those Hollywood couples we thought would stand the test of time, Gwen Stefani and Gavin Rossdale shocked fans by announcing their divorce in August.

2. Blake Shelton and Miranda Lambert

Blake Shelton and Miranda Lambert
Blake Shelton and Miranda Lambert's breakup was sudden in terms of the fact that we found out about it only after the divorce was finalized, but it appears to have been a long time coming, based on the insane scandals, rumors and tension that have surrounded them ever since.

3. Ben Affleck and Jennifer Garner

Ben Affleck and Jennifer Garner
A truly shocking split, Ben Affleck and Jennifer Garner were married nearly a decade, and were a darling of celebrity news fans everywhere the entire time. Now that we've learned he may have been sleeping around with the nanny, however ...

4. Megan Fox and Brian Austin Green

Megan Fox and Brian Austin Green
Megan Fox and Brian Austin Green were together 11 years and married for five. Their quiet breakup in August caught us off guard to say the least.

5. Kourtney Kardashian and Scott Disick

Kourtney Kardashian and Scott Disick
Kourtney Kardashian and Scott Disick parted ways after she tired of his drunken shenanigans, years-long binges and generally being MIA when it comes to parenting ... and he was caught red-handed with Chloe Bartoli.

6. Melanie Griffith and Antonio Banderas

Melanie Griffith and Antonio Banderas
They might not be in the spotlight as much as some other entries on this list, but Melanie Griffith and Antonio Banderas' breakup after many, many years together was as surprising as any.

7. Zayn Malik and Perrie Edwards

Zayn Malik and Perrie Edwards
Zayn Malik is no longer with One Direction ... or with Perrie Edwards, as he decided to go solo in the relationship world as well.

8. Josiah Duggar and Marjorie Jackson

Josiah Duggar and Marjorie Jackson
In a literally unprecedented move, the Duggar family was not immune to the breakup blues as Josiah Duggar and Marjorie Jackson called off their relationship just a few months after announcing they were courting, which is basically like a pre-engagement process. We blame Josh.

10. Britney Spears and Charlie Ebersol

Britney Spears and Charlie Ebersol
Britney Spears and Charlie Ebersol were hot and heavy for six months or so, after she dumped David Lucado for cheating on her, but this one came to a sudden end for unknown - albeit apparently more amicable - reasons.

11. Charlize Theron and Sean Penn

Charlize Theron and Sean Penn
Charlize Theron and Sean Penn seemed mismatched at first, but were together long enough that it was still a surprise when they (abruptly) ended things in June.

12. Nick Jonas and Olivia Culpo

Nick Jonas and Olivia Culpo
Nick Jonas and Olivia Culpo, former Miss USA, called it off in June. Most likely because she is former Miss USA Olivia Culpo and she realized she was dating Nick Jonas.

13. Matt and Amy Roloff

Matt and Amy Roloff
Matt and Amy Roloff called it quits after 27 years of marriage to kick off the summer, right after Memorial Day.

14. Vicki Gunvalson and Brooks Ayers

Vicki Gunvalson and Brooks Ayers
Vicki Gunvalson and Brooks Ayers' breakup - their second in four years - was not too shocking for those familiar with The Real Housewives of Orange County online, but it did come out of nowhere ... and amid rumors that he faked cancer to move in with her. So that's different.

15. Chris Soules and Whitney Bischoff

Chris Soules and Whitney Bischoff
The Bachelor's Chris Soules and Whitney Bischoff announced their split at the tail end of May. That is, if they were even together and not just pretending until the new season of The Bachelorette began to save face for the producers.

16. Katy Perry and John Mayer

Katy Perry and John Mayer
We know, how do you even count Katy Perry and John Mayer, given that they've split up like 12 times. But their latest breakup did happen do occur this summer. #truth

17. Leah Messer and Jeremy Calvert

Leah Messer and Jeremy Calvert
A long time coming, Teen Mom 2's Leah Messer and Jeremy Calvert called it quits for good in early summer. She's now looking for husband #3.

18. Kermit the Frog and Miss Piggy

Kermit the Frog and Miss Piggy
Yes, even Kermit the Frog and Miss Piggy got in on the breakup game. The longtime muppet duo announced their separation last month.

19. Avril Lavigne and Chad Kroeger

Avril Lavigne and Chad Kroeger
Avril Lavigne and Chad Kroeger were married for about two years. But they sadly announced their separation in August of 2015.

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