A close friend is in an abusive marriage and has been for many years. Although "functional" until recently (last five years, since they tried to escape but it backfired), my friend can't/won't leave. What really puzzles me drives me insane is why this friend pretends that all is well, despite the escalating threats of violence - "If you don't do as you're told, I'll trash your career/kick you out in the street/kill you" - and restrictions on time alone, phone calls, which friends and family allowed to see/be in contact with. There are no DC involved, thank God.