The USA is a simply a dictatorial country that only want it puppets to be rulling nations around the world. if there is a government that is opposed to it meddling, then it won't speak or do business with that government. The last thing hezbollah can worry about is the support of the USA.
Russia: U.S. plan to provide air cover for Syrian rebels undermines Damascus fight on ISIS (Reuters)
from the article: U.S.: Relations with Lebanon will suffer if Hezbollah takes leadership