Are my best friend and I drifting apart?

I'm sorry to say this but yea. i think you and you friend are drifting apart. The best thing for you is to try and get it into your head that your friendship isn't what it used to be but you should keep trying to hang out. I know what your going thought except i can walk to my friends house. She just basically replaced me so i know the pain you feel but i try and still do things with her but have got it into my head we're not the way we used to be. You shouldn't just forget about her because some day im sure you guys can become friends again. good luck hun.