Best friends.
What kind of person do we call that? The closest person she knows is much more than family, boy, friend. Even without realizing you are ready to do everything possible to help each other.
Yes, maybe your friendship story was not originally the most rosy, but friends are checked by time. She is the dearest person to you, you are ready to come to her at night if you need it. If you are always ill support. Always recognizes a false smile, will give advice. Who could be closer to her? No one, no one can replace it. After all, only she can make you take an important step.
She replaces you sister, she is always there, worries about you more than about yourself. Do not let you suffer, can always cheer up. You share the secrets in half. You have a lot of common memories, take care of them like a treasure.
After all, fate is not just brought you together, you were destined to meet. So don't let the situation ruin everything. Take care of your best friend, because the second one you will not find at all.