The relationship is complex. Remember the Marshall Plan was needed partly because massive amounts of European infrastructure and industry which had occurred in some cases long before the USA even joined the war. The USA had the benefit of being resource rich, but also geographically isolated which meant that the continental USA never suffered from severe bombing raids or threats of invasion. (Many European towns and cities ended up being levelled.) It fought the war on entirely different terms to Europeans. Even today this geographic factor plays out. Europe deals with the refugee crises caused by Middle Eastern wars far more than the USA does, and Russia could invade EU countries by land far more easily than the USA.

Europe has benefitted from the USA in some ways, but the USA doesn't always have to bear the consequences.