How did Sirius not know. At least Adrian didn't think that the other man had an inkling. Unless that was what all the blind dates were for. In fact that made perfect sense. If Adrian were to actually possess a friend like Remus and Sirius seemed to be and if he knew that said friend were into him and he didn't feel the same... that was exactly what he would do. Good plan really. Get the other bloke distracted and avoid any uncomfortable discussions.
He'd have to congratulate Sirius on the brilliance of that particular plan.
This wasn't quite the reaction Adrian had been hoping for, Remus was clearly too skilled at keeping his emotions in check. "What I think it is really not the point. But if you insist... I think this is a man who, for whatever reasons is unwilling to deal with whatever lust he has for his best mate. I don't think you're the type to try and get in anyone's pants which is 99% of your problem clearly. Does that answer your question?"