you could start a whole line of friendship, because people will notice she is kind and will be her friend and will go to be her (or his) friend! and then you can go back to your old friends (but still be her friend!). maybe they are her friends too, and then you and your friends can all play together.
people will notice that it doesn't matter what you look like or if you have a disability. everyone is a person who needs friends! so remember that you can have more than just one or two friends.