Yeah, it's intentional that you get restricted to the chosen path. Naomi should have an option in the kitchen provided she is who you chose after the third transformation.
Viewing post in Voronica Goes to Town version 1.0 (full!) comments
Yeah, sorry, it's a deliberate difference (so "fixed"). The old version needed to allow people to play all updates as they came out rather than having to start a new game/save to see the new content. Now that the paths are complete the final date sets are locked in for the character you picked after the third transformation.