I've spent a LOT of time in prayer over it for guidance on whether Anything needs to be done about the situation or whether I should just move on or even other options I haven't come across yet.Sanjuro,
Have you tried prayer for your own peace of mind and for the strength to bear your cross - which this type treatment may be to you? Now, if you need to justly right a wrong - correct false information, etc. then do so for being a Christian doesn't require you to alow lies to be spread about you.
But if the only motivation left is to "get them" for insulting or slighting you in the past, then I would suggest you seek the strength to move on. Admittedly, this takes an act of faith and faith is a product of will and intellect not "feeling" - i.e. you don't have to like it but, if you can, for the right reasons, will yourself to do the right thing then that is a great act of faith.