Hello Kendall Bennett,
Unfortunately, at the moment 1:1 associations can not be modeled due to some restrictions in the OpenAccess runtime. For the moment you can workaround this issue looking into the single object that would be part of the collection on the n side of the association. Since we are getting more and more requests for this feature, we are evaluating the development required for it and we will schedule it for one of the next releases. At the moment we are preparing a KB article with a list of possible workarounds for different scenarios.
I will give you an update in this forum thread after we have this KB uploaded.
the Telerik team
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