You repay kindness with kindness. Love with love. And when someone slaps your cheek, you turn the other cheek and offer that to them. You want to be friends and have a good relationship with them. I can see the kind heart that you have. Contact her and apologize for being distant. Offer her the other cheek to slap. Let her know it was not your intentions to become distant. And that you miss her. Then hopefully she will come around and be your friend again. Forgiveness releases your mind and heart from the hurt that was caused by being apart.