There is a certain amount of separation with poly regardless of NRE. The co-dependant bit isn't as strong, or even in existent in most poly relationships. There is nothing wrong with that. It just takes some getting used to.
What would happen if you totally feel into NRE with another person? Would you run from your partner? Would you some how fall out of love with them? I suggest really allowing your mind to go there rather than avoiding it. Really see what you think you would do. No one knows what would really happen, but one thing is for sure, you won't know until it does and all you can do is prepare in all the ways you know how and see what happens.
I suggest you let your partner and whomever you get involved with know that this is a possible issue for you.
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