Let's say Alice sees her boyfriend Bob with Charlotte, another girl. Now, I know the correct usage is "Alice is jealous of Bob". My question is how to connect this predicate (be jealous) to Charlotte. That is:
Alice is jealous [of Bob] ___ Charlotte.
What preposition should come before Charlotte? If there is such a preposition, can I leave the part between the square brackets (of Bob) out?
Or how can I otherwise express this idea with and without including Bob in the equation?