harmilap,
one thing that I’ve learned is that a healthy relationship can not be made by 1 person.
it’s not a pleasant thing to hear but it is true.
if you love her, you’d be happy for her happiness and if her happiness is being with whom she is now, the best you can do is support her, be her friend and be there for her.
maybe, one day, she’ll have another opinion, other goals in life, whatever it might be and in those might be her love for you but, for now, live in the present, be comfortable and happy with yourself and be her friend.
remember that a healthy relationship is made with 2 complete persons, complete yourself first and let life proceed naturally.
much love,
S