Hello bradford889,
I found a couple of articles that may help with the Bluetooth issues you are experiencing on your MacBook Pro.
Firstly, you can use the steps in this article to remove a Bluetooth pairing from your Mac (this article is archived but the steps are still relevant):
Bluetooth: How to Delete a Paired Device
http://support.apple.com/kb/ta27116
After removing the device that you do not want paired, you can follow the steps in the section titled "Top troubleshooting tips" in the following article if you still cannot pair your Bluetooth keyboard:
Bluetooth Quick Assist
http://support.apple.com/kb/ht1153
Thank you for using Apple Support Communities.
Best,
Sheila M.