Bragging best friend?

My best friend is really funny and we share slot in common, but she brags. All. The. Time. She use to lie to people about ally of stuff, and she still does. She says she stops though. Here are a few examples. She was texting some guy and she told me she told him " Riding the golf cart" when we were just walking around the neighborhood. And one time, she brought this " contract" her " dad made up" stating her rewArds for good grades. It was like this- $20 per F, $30 per D, $50 per C, $75 per B, and $100 per A. And additionally to that if she makes straight Bs and Cs, she gets an iPad. if she makes straight A's and B's she gets an Mac book pro. If she makes straight A's she gets the iPad ,Mac book pro, and iPhone. So she would get all this money and presents. yeah right! First off, she doesn't really make good grades, D's and C's sometimes B's. And second. Her dad is a super strict military guy that's retired, and her mom doesnt work. How could they pay for all that!? Her mom always complains about how she doesn't have enough money to stop somewhere to get coffee( etc. Etc. Etc.) another thing is she always says her dad orders her stuff online all the time! Like she said( dood! My dad just ordered me the iPad and a Mac book but he won't give it to me!) clearly she's lying, because when I brought my iPad over to her house her parents were amazed and were like we could never afford this. Her house is average size, mines fairly large because my parents are frugal with their money and don't go showering us with gifts, only I got an iPad for my bday cause I paid for half.

So now to the present. We've been both saving up for a shopping trip. She texted me saying she saved up 1578 dollars. Ah huh. I'm goingbto believe that. I only have 150! It's been just 2 weeks since we set th goal! She also texts me to say she's at coach or juicy couture and just had a shopping spree her mom paid for. She Use to have a lot of clothes, but she sold half of them to platos closet, and said they gave her 354$ In cash. They send checks for more than $50 though! She also sent my a picture of her new ipad. I can understand she got one because today's her birthday, but why am I still jelous when I have one too? Why do I feel so jelous when I know she's lying cause I know her parents who are very nice. How can I confront this to her?

The argument has come up before, and she says she's jelous of ME! She says she's jelous of my grades, my clothes, my house, etc. She's pissing me off really bad. She always brags but she brags alot at certain times. I can usually handle a little cause thats the nature of her. What do I do without being mean?!

P.s. She said she's been all over the world, and I asked her mom and she said she's only been to bermuda.