<<Immature, maybe. But I will not be able to interact with her in the same way that I would with someone new who was not involved in the breakup of our marriage.>>

I understand this and it is far from being immature. Isn't it amazing how most of us (at least at the beginning) are more than willing to more than interact with our Xspouses but not the OP....almost like we shift the blame to the OP.