I don't want to be friends with a girl who doesn't reciprocate my feelings
I need to know more about the situation. Are you sure that you want to end your friendship?
It gets tiring knowing that she doesn't see me the same way that I see her.
I understand your feelings are involved. However, it is wrong to be friends with someone you may have deeper feelings for or may be in love with. That puts unnecessary and unfair pressure on the other person.
I think it's normal to have that kind of tension between friends.
That may be, but does your friend know how you feel about her? She might be surprised to learn that you have feelings for her at all. Perhaps you should try dating another girl and focusing your feelings on a new relationship.