That's part of the problem. How can you pin down what the person was lacking in that situation? Were they lacking "friendliness", "suaveness?" Were they not

That's part of the problem. How can you pin down what the person was lacking in that situation? Were they lacking "friendliness", "suaveness?" Were they not attractive enough? How many shortcomings which could be attributed to "culture fit" are actually things you could change?