If my husband goes out with friends at night and doesn't come back for one night, he says to sleep in a hotel. Can you believe it?

It depends on your relationship. However, women had better not be suspicious. They'd better trust their husbands before catching anything. If you doubt, ask. Don't always guess. Maybe it's really nothing. You are always guessing. If your husband really does something out of rebellion, then you will lose more than you gain.