Is it abuse if your wife who is not being abused re-visits police giving them the impression you are continually threatening her because of a one-time incident that occured at least 4-5 years earlier?
Maybe to her, any anger is threatening and she is letting you know that she won't put up with it. If you don't like her acting like that, leave. Get a divorce and start over. If she FEELS threatened, she's entitled to ask for police assistance. If you've been physically abusive, even once, she has a right to feel threatened.