smile19- I feel you girl! Heres my humble advice: Take this as a Bracha from Hashem. Clearly Hashem only gives us brachos in this world, but us as humans cannot recognize what we percieve as challenges as brachos. People will come into your life, and people will leave your life. You should take whatever you can from every person who comes in and incorporate everything they taught you that you found useful, or everything you saw in them that you would not want to be and make yourself a better person.
In this case, I do not think your friend and her mother are being fair to you at all. I do not know them, so I cannot say whther they are justified or not, but I would say don’t bother anymore. You seem to be a very special person and I would love to be friends with you anyday 🙂 surround yourself with genuine friends and remind yourself eahc moment this hurts you, that this is for the best and it is her loss for treating you unrespectfully. Hatzlacha with everything!