Mischa Bartonis opening up about her real-life romance she had with herThe O.C.costar,Ben McKenzie.

But, she admitted, their relationship was “kind of complicated.”

Acting with people older than me was a bit like, Oh wow.

Benjamin McKenzie, Mischa Barton dating while on the OC

Benjamin McKenzie and Mischa Barton on ‘The Oc’.Warner Bros Tv/Kobal/Shutterstock

They know what theyre doing.

“It was a lot of my firsts, lets put it like that, she explained.

It also impacted her relationship with McKenzie.

It was all crammed into this tiny little space.

In the years sinceThe O.C.aired, Barton has been open about her experience shooting the series, tellingE!