Pin for Later: 18 Actors Who Couldn't Seem to Stop Dating Their Costars Sophia and James split in 2009, and she dated her other One Tree Hill costar, Austin Nichols. They called it quits in 2012.

Sophia and James split in 2009, and she dated her other One Tree Hill costar, Austin Nichols. They called it quits in 2012.

Pin for Later: 18 Actors Who Couldn't Seem to Stop Dating Their Costars Sophia and James split in and she dated her other One Tree Hill costar, Austin Nichols. They called it quits in

Former lovers: The actress dated her co-star Jesse Lee Soffer for almost a year before cal...

Sophia Bush spotted for the first time since leaving Chicago P.D.

Former lovers: The actress dated her co-star Jesse Lee Soffer for almost a year before cal.

Sophia Bush. Jesse Lee Soffer. Erin Lindsay. Jay Halstead. Chicago PD. Linstead.

Sophia Bush. Jesse Lee Soffer. Erin Lindsay. Jay Halstead. Chicago PD. Linstead.

New man: Sophia Bush is reportedly dating her Chicago P.D. co-star Jesse Soffer, pictured in January

Sophia Bush is in secret 'relationship' with co-star Jesse Soffer

New man: Sophia Bush is reportedly dating her Chicago P. co-star Jesse Soffer, pictured in January - Sophia Bush always dates and sometimes marries her co-stars remember "One Tree Hill"

One Tree Hill Costars Chad Michael Murray and Sophia Bush dated, and made our dreams come true. Unfortunately, the annulled their marriage after only 5 months.

18 Actors Who Couldn't Seem to Stop Dating Their Costars

Pin for Later: Is There a TV Costar Curse? 30 Couples That Couldn't Make It Work Sophia Bush and Chad Michael Murray

Pin for Later: 18 Actors Who Couldn't Seem to Stop Dating Their Costars Another small-screen couple is Sophia Bush and James Lafferty, who starred together on One Tree Hill and dated for a year.

Another small-screen couple is Sophia Bush and James Lafferty, who starred together on One Tree Hill and dated for a year.

My three the most favorite people from OTH cast! Bethany Joy Lenz, James Lafferty and Sophia Bush Thank you guys!

Halstead: My bad. I didn't know that you had feelings like that for Severide when you guys dated. Lindsay: I didn't. (4x09)

Halstead: My bad. I didn't know that you had feelings like that for Severide when you guys dated. Lindsay: I didn't.

Lovebirds: Lady Gaga and Taylor Kinney, who are currently engaged, have been dating for almost four years now - pictured in September 2014

Sophia Bush gushes over Lady Gaga

Lovebirds: Lady Gaga and Taylor Kinney, who are currently engaged, have been dating for almost four years now - pictured in September 2014

Pin for Later: The Hottest Date Last Night Was a Fashion Designer Sophia Bush and Hilary Rhoda with Jodie Snyder Morel and Danielle Snyder The actress and the model provided stylish dates for the Dannijo designers.

Sophia Bush and Hilary Rhoda with Jodie Snyder Morel and Danielle Snyder

Jodie Snyder Morel Photos Photos - Sophia Bush, Jodie Snyder, Danielle Snyder and Hilary Rhoda attend the 2014 CFDA fashion awards at Alice Tully Hall, Lincoln Center on June 2014 in New York City. - Arrivals at the CFDA Fashion Awards — Part 2

Sophia Bush rode sidesaddle while visiting Uganda.

Pin for Later: This Week's Cutest Celebrity Candids Sophia Bush Sophia Bush rode sidesaddle while visiting Uganda.

Pin for Later: 9 Reasons Why Britney Spears's New Guy Is Totally a Keeper He's dated famous women before.

He's dated famous women before.

Pin for Later: 11 Reasons Britney Spears Hit the Jackpot With Her New Man He's dated famous women before.

Sophia Bush has dated three of the show’s main characters: Chad Michael Murray, James Lafferty and Austin Nichols.

Sophia Bush has dated three of the show’s main characters: Chad Michael Murray, James Lafferty and Austin Nichols.

Sophia Bush has dated three of the show’s main characters: Chad Michael Murray, James Lafferty and Austin Nichols.

Cuddling up: Selena posed alongside former One Tree Hill star Sophia Bush ...

Selena Gomez enjoys dinner date with Gigi Hadid's friend Samuel Krost

Cuddling up: Selena posed alongside former One Tree Hill star Sophia Bush .

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