(Click to read the question--but in brief, it had to do with why one guy named Bill had managed to discourage unwanted pursuit by a gal named Janet, when another guy named Bill had not.)
Janet didn't give a rat's ass about the two Bills. 
mnli hypothesis: Janet didn't give a rat's ass about the two Bills.  premise: (Click to read the question--but in brief, it had to do with why one guy named Bill had managed to discourage unwanted pursuit by a gal named Janet, when another guy named Bill had not.)