Are there things you don’t want your spouse to know? Are there things you are hiding from your husband, wife, boyfriend, girlfriend? Which are some of these things?
Let me put it the other way. Are there things you think your spouse or friend doesn’t like you to know? Can you say them? Why would they not want you to know?
What do you say about spouses or boyfriend/girlfriend who hide things from each other? Who are not open to each other?