I was married at the time of I-140 filing. Married in March 2013, filed in September 2013, approved April 2014, filed I-485 in June 2014.
My wife was on H1 status (through her employer) till 2 weeks ago when she quit her job and is switching to another employer using EAD.
Me and my wife had been living in separate states because of work since our wedding till recently. I wonder if that had something do with this RFE.