I'm about a third of the way through Kevin, so thought I'd add some comments here, then see if they changed as I got further on, in light of the comments that it gets better.
I's currently swinging between empathising with Eva, and wondering how a mother could feel that way about a 4 year old (they've just moved house where I am in the book).
What's slightly disturbing me is that I have had similar "unsympathetic" feelings towards people in my life who really deserved compassion and understanding (i.e. why are you ill when I need you to be well, or don't want to change my lifestyle to look after you? type feelings). I don't have kids (yet), but if/when I do, will these feelings come back or will I bond with my child the way I am "supposed" to.
BUT, Eva is writing with hindsight - would her feelings actually have been different at the time, or would her memories be different if "Thursday" hadn't happened.
I also don't like the tone of the letters, because I don't think anyone would write in that style to someone who they had had such a close relationship with in the past. If she were writing to a therapist, or writing for a newspaper, maybe. I don't think the author has actually thought about how someone would actually feel in Eva's situation, which is probably why she comes across as being so cold. She seems to "know" things (which helps the story, I suppose), where in "real life" there would be panic, indecision, fear, lack of understanding.
In saying that, I am finding that I am enjoying it, in so far as when I go to bed really tired, I'll still pick it up and read a few pages. I tend not to with books I am not enjoying.
Next installment in a couple of weeks........