So I guess I've known this all along but recent encounters and situations have made me realize how important it is to be yourself.
In all of our lives we will make friends, some quickly, others may take time. As those friendships grow and develop sometimes we find that people are not who we once thought that they were. In short, we may find that we are no longer a compatible. Recently, this has happened to me several times. I try to handle those situations by first seeing if the friendship can be salvaged alas sometimes they cannot.
I guess the moral of this story is: when you find yourself in a relationship that is no longer healthy or you no longer enjoy it is probably best to end that relationship. Losing friends is tough but being in a bad relationship is tough as well and can affect other parts of your life such as school or work. So, don't change yourself for anyone people grow together or they grow apart but the most important thing is to stick to who you are.
Also: Sometimes ending friendships can be a dirty thing that leaves people with feelings hurt or prideful as if they were not at all at fault and what happened was unwarranted. Trust me they will get over it.