I accidentally saw my mother-in-law's WeChat chat record and told a man that she hurt her last night, and there was such explicit language.

Mother-in-law is also your elder, so you should not check his privacy. Here, whether you are an elder or not, you can't check other people's privacy. This is the minimum respect for others.

Don't say what you accidentally saw. Accidentally, I only read one or two sentences. If it is explicit, you must have seen a lot. This is not good.

Besides, your mother-in-law should actually pretend that nothing happened.