How does inflation affects marginal utility ? / paradox vale / budget line ?

Not sure what a paradox vale is but let's start by what MU is and that's the amount of extra satisfaction a customer receives after consuming something typically a good or service. So my guess at how inf effects MU is that depending on the price. If it is cheaper and good quality, MU is high. If the product is expensive and the quality is bad then MU is low. Budget line is common sense, inf and price range. Self explanatory.