Yes, Isla, it was difficult to really care what happened to any of them. I've read novels with unlikeable characters that have been brilliant books (eg The Dinner, Notes on a Scandal, We Need to talk about Kevin) but in those books there was a real desire to find our exactly what happened. Thinking about it, the 3 I mentioned all have unreliable narrators of sorts, maybe that's what the Silent Wife was missing (for me)
I wasn't keen on it. I think my expectations were too high but it just felt quite flat and uneventful. I think the publishers, editors and fellow authors did a wonderful job in pushing the book and honouring the author after she died pre-publication but, unfortunately, I didn't think the book stood up to that hype.