Hi I love this girl and she fells the same way for me but the problem is she has a boyfriend help?

Well, if she feels the same way, and has a boyfriend, then she shouldn't even be with him in the first place. There's the possibility that she likes him as well. You should talk to her and see if she likes him, and if not, then see if she's willing to be together.

Give her time to think, give her space. So that she can actually knew who from the both you she really loves and cannot live without. Because she shouldn't be with her boyfriend if she really love you, or she shouldn't be with you telling that she love you and still have a present relationship. She need to choose, she need to love only one. Try to relax and take good care of your self. You have to learn to love your self first before you love other's.