What should I do if I still love her?
Do you want to feel differently?
Yes. I think no matter what happens I will always love her.
Sometimes it's hard to let go. If she doesn't feel the same, you have to move on.
I can't do it. I just want to hold on to this feeling.
I'm sure you want to eventually find another relationship where you can have this feeling toward someone who can love you back. In order to do that you'll need to move past the feelings you have for your ex. It's hard, but it will make you feel better in the long run.