Appropriate answer.

An assertive approach can help disputants reach mutually acceptable outcomes.

This interaction would have sounded more like a conversation than an argument because there would have been no need to attack each other personally.

Try another option.

Taking a passive approach would not have helped Wayne or Annette.

They needed to work this through, not have one of them walked over.

On the way towards an appropriate answer - try another option.

There may be some merit to this idea, particularly if both were able to cool down enough to see each other's point of view without getting personal.