Why does she acts like this?

My cousin comes from a long line of money and a huge family on her dad's side. I have to work for every thing I have and all she has to say is I want or need this and her family is there and gives it to her. She works but only like a day a week I got layed off but shortly found something else but in the moment of being layed off she rubbed it in my face she was working. She went and got an expensive Iphone and I have a nice phone but not an Iphone, I don't have health insurance either because I lost it with my job and my new job doesn't offer it she keeps throwing it up in my face she can go to the doctor any time she needs to. I cry just about every day because she treats me this way. Today she went to the NFL game and called me to tell me that her and her boyfriend were going. She knew I couldn't afford tickets to go but still let me know she was going because her boyfriend mom gave them to her. Why does she treat me this way?

She sounds like a cruel person. If it were me, I'd quit having any contact with her.

That's just the way she was raised, no one decided to stop it when she was younger so now she thinks the way she acts is acceptable cause no one told her different. Just let her live her the way she wants and you live her life