All I have to do to make your assertions invalid as explanative of these verses is show that you have no basis for your interpretation, I don't have to invent a more valid interpretation.But you haven't done that yet.
Very well, let's go over it again briefly:
You don't know how old the young man was. You know what the term means in Israelite society but have no frame of reference for the term's application to longer reported lifespans.
You don't know how old Naamah was.
You don't know how old either wife was.
You don't know whether any physical contact ever occurred between Naamah and the young man (because the text does not state it).
You do not know if the young man ever met or saw Naamah (because the text does not state it).
Therefore, while you are welcome to believe whatever you like it would do you well to note that your belief is based on your imagination, not on the Bible.
AuldSoul