how i know she love me?

if she truley loves you it will show in herb action and in ya'lls relationship so don't let it get you down

how do you know if he's the one and how do you tell him?

The question is Do u love her?????

People who r loved, deserve to know that they are loved. If you really love her don't miss a chance to express it, because hearts are broken when words r left unspoken.

Tell her that u love her..... what can happen? at max she can say no, its her choice. But if you don't ask her, how will she get even a chance to say YES?