I am sorry this is happening and that your brother's girlfriend said that to you. I don't know if this is good advice or not, but if it were me, I would check to see if your brother even knows she said this to you. She is not your family (yet?) but he is, and if it is HIS daughter, IMO, she has no place to tell you whether or not you can be around Aaryaana! (beautiful name, BTW)

I hope that wasn't too forward of me, if so or if I offended, I apologize! I really feel for you...