I've always wondered if there really is such thing as a paradise and a hope for eternal life would we be limited to interacting with only one person?
The point could be argued from several perspectives. Several scriptures would suggest that a man and woman once joined in marriage are to be tied only to each other indefinitely. However there are other scriptures where the practice of having more than one spouse was not uncommon.
Also its interesting to note that as humans variety is one of the keys to a rich and meaningful existence. No sane person would enjoy eating the same food, wearing the same clothing or even talking/interacting with just one person. So why would'nt that apply to initmate relationships as well? Despite the fact that people get married to one person they still experience attractions to other people. Would'nt this be a sign that we naturally are capable of enjoying more than one relationship?
I'm not claiming to know the answers to this, but its an interesting thought.