It's not who you start the year with, but who you end it kissing as the clock strikes midnight.

As we all know, celebrities know how to deliver the relationship drama, breaking up, hooking up, reconciling and divorce-filing all the time. But 2019 proved to be a particularly busy year in the celebrity romance department, with some major splits and even more surprising hookups. 

Just think: In 2018, Pete Davidson and Ariana Grande were arguably the most talked-about couple, but since their split, the Saturday Night Live star has been in three high-profile relationships this year alone. (BDE effect?) Meanwhile, Miley Cyrus and Liam Hemsworth both entered new romances after their split left fans shocked and watching The Last Song with tubs of ice cream to recover.

And 2019 proved to be the year that Bachelor Nation truly took over, with multiple contestants going on to date several mega-famous ladies after their time on Hannah Brown's season came to an end. Plus, a Property Brother snagged himself a New Girl and Lana Del Rey began dating a low-key reality star. (What is the opposite of "Summertime Sadness"?)

But which of these surprising relationships actually made it through the end of the year, heading into 2020 looking stronger (and happier) than ever? Let's take a look back at 2019's unexpected celeb couples (otherwise known as Pete Davidson's relationship rewind)...

Zooey Deschanel, Jonathan Scott

William Perez/Image Press Agency/Splash News / SplashNews.com

Gigi Hadid, Tyler Cameron

ROKA / BACKGRID

Demi Lovato, Mike Johnson

Shutterstock, ABC

Miley Cyrus, Kaitlynn Carter

RIWE / BACKGRID

Miley Cyrus, Cody Simpson, Instagram

Instagram / Cody Simpson

Liam Hemsworth, Maddison Brown

Liam Hemsworth, Gabriella Brooks

Media-Mode / SplashNews.com

Pete Davidson, Kate Beckinsale

MEGA

Pete Davidson, Margaret Qualley

Splash News

Kaia Gerber, Pete Davidson

Elder Ordonez / SplashNews.com

Emma Roberts, Garrett Hedlund

Bauer-Griffin / SplashNews.com

Halsey, Evan Peters

NEMO/ CPR/ D. SANCHEZ / BACKGRID

Shawn Mendes, Camila Cabello

RM / SplashNews.com

Lily Allen, David Harbour, Dior Men's Show, Pre-Fall 2020

Stephen Lovekin/WWD/Shutterstock

Lana Del Rey

Felipe Ramales / SplashNews.com

Miranda Lambert, Brendan McLoughlin

Splash News

Noah Centineo, Alexis Ren, Unicef UNICEF Masquerade Ball, Halloween

Broadimage/Shutterstock

The Mandalorian, Baby Yoda

Disney

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