Ah. Ivan pictures his test results and mentally adjusts it to account for what might be feelings of obligation and societal pressure. "That you could have a preference for men? It happens all the time in the Nexus. Not knowing, I mean. You don't think about it, or you can't think about it," and he wonders which one is more accurate for David, "and you don't question it until you're faced with it."

Which the other man clearly has been.