What do you do if you love says " We are just friends"

and what if she even not say that..........

Not exactly in that way. If I loved someone and they said we were just friends I would be sad, and I probably would cry. My love would be genuine of course. Then I would have to either accept the person is a friend but then that means I would have to control my feelings and because I actually would love the person I don't think we could be close friends because it would tear me to pieces. So maybe just distant friends until someday, maybe I could get over the love.

You cannot make someone love you. The choice is to hang around her and try to control yourself and constantly hope she will change her mind, or go somewhere else where you might find someone who will love you back.