I agree. And while (I have been reading a bit on polyamorous email lists in the past month) a lot of people are into polyamory INTENTIONALLY and consciously - meaning, they first conceive of a certain notion and then acted on it - I am sure that in my cases people find themselves polyamorous ACCIDENTALLY via a chain of events such as the one in your case. And then, after they unintentionally find themselves, say, being loved by two men, they might decide that "well, what exactly is wrong with that?"

You see what I mean? It is not always "I first choose XYZ and then do things consistent with XYZ" but can also be "I have found myself in a situation in which XYZ makes perfect sense, so why don't I try practicing XYZ and see what comes out of it?"