My best friend is so stubborn ...help!?

Ok so my best friend is the most stubborn person I know... dont even ask how we became best friends, even I couldn't tell you that one.

Anyways I love her to death, but her stubborness is starting to get to me. Basically she has to have everything her way and she always has to be right. If she asks for advice, she only wants the answer she wants to hear, not my actual opinion ugh. I usually try to look past it,because well she is my best friend, and I just have to accept the fact that she is a stubborn person.

For instance, on Valentines Day we were going to go see a movie during the day... So I went and bought the cutest shirt to wear (and I HATE shopping, so for me to fall in love with a shirt is rare). Anyways, the next day, she bought the same one, knowing I had mine... um wtf. I jokingly said "oh now were gonna be twins", her response "well just change your shirt then".

Sometimes she just gets under my skin and she really pushes my buttons ugh what do I do?