No, Emily Deschanel and David Boreanaz were in real life during the filming of Bones . While their characters, Brennan and Booth, eventually married on-screen, the actors maintained a strictly professional yet exceptionally close friendship. Professional Partnership & Chemistry

Both stars were married to other people throughout most of the show's 12-season run:

To build the "instant chemistry" seen on screen, Deschanel and Boreanaz worked with a every weekend for the first several seasons. They were so committed to their working dynamic that they established a "pact" early on, giving each other permission to walk away or admit when they were annoying each other to avoid long-term drama. Real-Life Marriages