The 'Her' star got engaged to Dauriac, a journalist, in the summer of 2013, reported Digital Spy.
"I'm busy planning Avengers 2 right now. That's my main focus. I've never been a big planning kind of person," she said.
"I'd never share it with anybody, but I think more than anything, I feel really fortunate to have had this amazing year professionally. And I think when all that smoke settles I'll be able to (plan)," she said.
Johansson, 29, recently shifted to Paris with fiance.