I think you are right. In the past many months when she is silent and I try to talk she tells me that she just wants silence. Most of the time it is when we are in the garage having a smoke and she is on her iPad.
Dealing with the silent treatment is one of my major issues that I have to come to grips with. In the past it has always made try to engage with terrible returns.
W-44,M-57 Married 20 D-17,S-13 W and I own our own business and work together.