Breaking up..

Break up

Have been trying to read up on break ups. I need to know how to break up with a friend. The difficult part is that we were very close (we are still physically in the same country) and we used to spend a lot of time together. Now my friend found new friends and a lover and is going in a direction that is forcing me to reconsider the consideration I used to give her.
To me, friends are like family and I treat them in the same way. I love my sister and my best friend (for 5 years now) is still like my sister; though we are not in the same place anymore.
So, my new friend now wants a new life,new friends and chuck the crap out of her life (u know what/who that is) I am left confused. I have never been dissatisfied by my friends and however cool or uncool the world saw them to be, I love them. But it seems not everyone is made of the same soil..
I am considering breaking off this friendship. Not sure whether I should or not anymore. Will know in 2 week's time I think.
So long...