Hello AutumnLeaf,
I think first up that by and large God doesn't really mind who we are with, it is out choice. If there is someone special he has in mind, then I feel that God will lead us to that person, if you are already married, then I believe that God would never do anything to break the covenant you have with Him and your wife.
In much the same way as if I thought God was telling me to murder someone, I think I would seriously question the source I feel those emotions coming from.
So no, is the answer to your question. In fact, I will go further and say that I think we would do well to remember that we are fickle beings. What holds our attention one day, will not the next and in our marriages now we have explored a great deal of known things, and possibly worked through a lot of issues with our partner and established a relationship with them, to trade that for the unknown, no matter how great it appears at first, is foolishness if we do not recall how amazing it was to be with our current partner when we first met them and shine that light on our new interest.
Cheers,
Digit