
Looking back at this post, I also want to add that the other clones of Main Owen is different aspects of Main Owen, thus the love Nux has for each other Owen is not the same as loving the Main Owen. He said it himself, he stayed and with others or something because he loves Main Owen, and he loves the other differences of Main Owen: the other 4.

Right on. It’s a weird unique concept, this one has physical different bodies although interconnected mentally. If I remember, all desire Nux because Main Owen desires Nux and loves Nux, and Nux desires and loves all the other Owens in different ways. Some expect Nux to love the others the same way as he does to Main, but they aren’t seeing that it’s because of Main Owen that Nux can love the others.
“Loving different aspects of you” is how I see it.
Main Owen being insecure makes sense in a way. Not everyone can love themselves, it’s difficult. There are parts of us we don’t want to share with our loved ones. We are physically seeing it. I can’t wait for the day when Main Owen does and is fine with Nux embracing the other Owens.
.. that Asperier doesn't love himself, and doesn't feel worthy of Nux love.
That's why he hides and dislikes other Owens, he doesn't understand that Nux loves all parts of him, just as he loves all the Nois equally.