P.S If there is a way to display the first field while still using the second field for selection I would be interested.
the first and second fields should be in a (monogamous) one-to-one relationship (not referring to a TO relationship). That is, for every value in the first field there should be exactly one corresponding value in the second field. This means you should be able to swap the two fields in your Value List definition.
Hope that helps.
An additional thought:
There's a new option on the inspector's data tab in version 15 that has a pop up menu display field 1 after you exit the field just like a drop down list.