fuss over someone/something
phrasal verb with fuss verb uk/fʌs/ us/fʌs/
过分宠爱;过分关注
to give a person or animal too much attention because you want to show that you like him, her, or it
She's always fussing over that son of hers as if he were a little boy. 她总是过分宠爱那个儿子，就好像他还是个小孩子一样。