Not necessarily a rival, but instead a good friend who could be a potential rival who wants the same man, but for whatever reasons Shirley thinks she has the right to get with him first so she says to her friend: "If we are to remain friends please stay away". But there are some lines without a clear meaning. The man they want seems like a son of a bitch somehow but Shirley still wants him...
Not necessarily a rival, but instead a good friend who could be a potential rival who wants the same man, but for whatever reasons Shirley thinks she has the right to get with him first so she says to her friend: "If we are to remain friends please stay away". But there are some lines without a clear meaning. The man they want seems like a son of a bitch somehow but Shirley still wants him...