What do i do?

Kamoey • Photgrapher, Ceramic Sculptor etc or simply an Artist.
How do you deal with a female friend who downplays your life threatening problems that have put you through several mental issues for her problems that are literally her crying because her mother and father argued about what to have for dinner one night while saying that her problems are more important, keep in mind, she's wealthy and you're poor and your family situation is horrible, and she brags about how happy her family is and so on and so forth.