Selecting previous dropdown items when using inverse export values

Hello community!

I am having a bit of trouble with a form I have created. There are many dropdowns that allow the user to select a value 1, 2, 3, 4, or 5. Once the user makes a selection the value is added to a total or score that is used for other things. The problem I am having is that there are four or five of these dropdowns that need to have their scores "inverted", that is to say that 1 = 5, 2 =2, 3 = 3(nothing needed there) 4 = 2 and finally 5 = 1. Generically i went into the dropdown options of these select few fields and set the values with their related scores. The math works correctly however, here is an example of my problem: If i make the field selection "5" and then try to click back to "1" it will not allow me. If i select "4" and try to select "2" it will not allow me, I have to click one of the options that is not the inverse. I am guessing it does not let me select "1" after selecting "5" because the value of 5 is already 1? If this is the case will i need to write a script to hnadle this logic? Thanks a ton in advance for your time!!