Some people are not worthy of sympathy, and I have seen many examples of this. No matter how much you persuade you, people won't think you mean well. On the contrary, when people reconcile, you will find that the clown is yourself.
You still don't understand the principle of persuasion and non-persuasion. Whether the couple divorces or reconciles, you can only persuade to reconcile. And people have children, you are a bunch of big men. For the sake of so-called toughness, let him go home and divorce. It's wrong in itself, it's him who cuckolds. Such a multiple-choice question, he already had the result in his heart. Such a woman is clearly being pinched to death by his wife.
You have good intentions and want to make your sister-in-law live a little better. But you ignore one point, it's easy to get along and it's hard to live together. This sentence adapts to any relationship with anyone, even lovers. It is easy to have contradictions when living together, after all, two different individuals will definitely have contradictions. What's more, you are two different families. You don't need to be depressed, you're just too kind.
Don't be too nice to a depressed person, she/he mistakenly thinks it's love. This is true because dependencies are generated.