14 Reasons to Believe in Judyth Vary Baker
http://jamesfetzer.blogspot.com/2010/03/14-reasons-to-believe-in-judyth-vary.html
It seems pretty clear (based on a cursory examination, which is all I can manage!) that she knew and was somehow connected to Oswald.
The question she didn't like on the radio was, do you have any love letters from him? The answer is no. Her explanation was reasonable (they were both married to other people at the time), so why get defensive and unsettled, as she did?