Man, it's reassuring to see that most of the commenters have this book pegged. From pretty much the start I've been persistently reminded, "Yeah, this is why she's on her second marriage alright," as she's consistently cold, unreceptive , manipulative, dismissive, and even occasionally violent in response to her endlessly caring husband's love and affection, treating him like little more than a punching bag and servant. If this were a real relationship, I'd give it another 5 years before she's shopping for her third marriage. Even a saint will eventually run out of patience and her lack of care and affection in return for his font will only serve to eventually burn him out and turn him into a bitter and dejected person that will no longer tolerate her shit.
And even though it's her second marriage, suggesting that came sooner rather than later for her first husband, she doesn't seem to get it at all. She doesn't seem to understand that her behavior will only serve to push him away and once they've drifted apart because of it, she'll never be able to get him back and she'll only have herself to blame for it. This isn't a warm, fluffy, charming story, it's a cautionary tale about how not to treat your spouse as they shower you with love and affection that you take for granted. She fails to realize even if it weren't Japan, the third time most certainly isn't the charm, it's a dire warning to other men that she's radioactive. And since it is Japan, she's legitimately lucky to have gotten a second shot, let alone with St. Boring Office guy that treats her like a princess. Some people just don't learn.