Looking at your dates, BD was a year ago? I can't imagine living in the same house with a WAS for a year. I would imagine that getting out of the in-house separation is an important step. Is there any way that you can do that without filing? If not, I would consider filing. But that is a personal decision that you need to decide that you are ready for. What would be worse right now continuing on as is or starting anew after D?
W 34 Me 42 Married 7 years together 8 0 kids 1 beloved dog BD 4/6/2018 I moved out 4/7/2018 I moved back in alone 8/05/2018 I file 3/06/2019 D official 5/7/2019