Ensure you have at least three "Locker" items in your inventory before speaking to her. The bug is frequently caused by a check that looks for these items but fails to display the prompt if they are already equipped.
Press Space Bar once to interact with a character and twice to trigger unique event popups once the "Strange Girl Fix" is applied. tentacle mart v010 strange girl fix
Use the Arrow Keys or A/D keys to move between different lockers in the store. Ensure you have at least three "Locker" items