Tim Dobrinski has been putting in a lot of work on a utility to edit and repair the Relationships List. An invaluable tool for when Variations go bad. He is giving it away free on his site. I strongly suggest you check it out.
You can get it here http://www.thesug.org/blogs/lsuslinky/Downloads/Forms/AllItems.aspx
Disclaimer: The software, source code and guidance on this website is
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