Ya girl needs some help

One of my best friends isn’t a good friend at all. For one all she cares about is boys and acts like everything is a movie. I put all the work into our friendship. For example a while back you know all my friends wanted to go to lunch so I’m like yea let’s go. She goes off with one of my friends and tell her oh let’s go here and ditched me and the rest of my friends and then says she didn’t see me texts until midnight but I saw them in her notifications. At this point that was my last straw. She also is very two faced, no confidence and basically wants to be me which pisses me off because I worked on finding myself for so long. I know this is a lot and I’m sorry. (Anger ya know?) I need advice on how to tell her like look I can’t be your bestie anymore. Can anyone help?