If you say that someone fawns over a powerful or rich person, you disapprove of them because they flatter that person and like to be with him or her. [disapproval]
People fawn over you when you're famous. [V + over/on/around]
Nauseatingly fawning journalism that's all it is. [VERB-ing]
Synonyms: ingratiate yourself, court, flatter, pander to