Formula? There are many ways to resolve situations. In this one, both parties apparently agreed the paper was "rubbish". The problem that needed resolving was

Formula? There are many ways to resolve situations. In this one, both parties apparently agreed the paper was "rubbish". The problem that needed resolving was the paper, not the interaction. And since they were co-authoring said paper, why on Earth would the "rubbish" man not want to help? She could have simply said "can you please help fix the paper, you are a co-author after all?". And he most likely would have helped. There is no connection to leadership from her actions that I can see. Only the one an article wishes to make up.