My best friend was beaten by my husband's family. She said she should eat, sleep and think nothing. Is that so?

Of course it is wrong. If you have a domestic violence for the first time, there will be a second time, so you must treat each other resolutely for the first time and let them see your determination, so you can either resolutely sue for divorce and leave evidence, or the other party will sign a letter of guarantee tonight. Once again, let the other party clean up the house. If you can't fight, you will have nothing to do, and the other party will get used to it. Then the second time and the third time came soon.