1
general::
Treat or consider as very important; also, pay someone a lot of favorable attention. For example, Bill made much of the fact that he'd been to Europe three times, or Whenever Alice came home for a visit they made much of her. [c. 1300]
American Heritage Idioms
2
general::
Phrase(s): make (too) much of someone or something
to pay too much attention to someone or something. • We all believe you are making much of Tom when he has done no more than anyone else. • Don’t make too much of it. It was really nothing.
McGrawhill's American Idioms And Phrasal Verbs