better the devil you know than the devil you don't

better the devil you know than the devil you don't

When faced with two options, it is better to choose the more familiar one, even if it is undesirable. A: "Why don't you just quit your job if you're so miserable?" B: "Who knows if a new job will be any better! Better the devil you know than the devil you don't."
See also: better, devil, know