Personal note: Marriage is not always easy. My wife and I don’t remember how many years we’ve been married, preferring to concentrate on each day. We enjoy splendid times together; we support each other in our work; sometimes we fight. But there are implicit red lines, one of which is: Do not stab another while he or she is sleeping. (There are other red lines which lead to a successful marriage, but this is kind of a big one.)
A woman in Kita Ward, Kumamoto, was arrested for stabbing her sleeping husband. She claims that he had been beating her (another red line). Whatever the facts, this is all very sad. There are other choices. - William
https://japantoday.com/category/crime/woman-arrested-for-stabbing-husband-as-he-slept