I'd advise redoing the entire process, carefully and methodically. Note that the monologue I wrote doesn't include a single mention of the person's positive traits; it doesn't come up with a story to excuse the person's irksome behavior; and the behavior of the monologuer is not conducive to reaping cognitive dissonance, because she has a complete explanation in mind for why she's doing as she does (she is high-minded and tolerant and good) that doesn't involve liking the person. This means that if you get to that monologue, the steps I outline didn't "stick".