Agreed CC, well said. Any lead-ups have no relevance at all.
Rudeness, unless it precipitated a major occurance should really just have been resolved with a telephone call as someone stated earlier.
The temptation to reveal your true fealings is I must admit as an ATC, often very difficult to keep in check, especially if there is any past history etc............
The test of ones professionalism is being able to gloss over those temptations and just get on with the job. Quite unfortunately, everytime you do succumb, irrespective of any level of mitigation, there is no plausible exscuse...................