I have had a problem with my best friend the past couple of days

She isn't even interested in greek life but I love her and all my new sisters. She thinks that now that I have all these new sisters that Im going to forget about her....but Im not going to forget about her but shes gotta understand that I do have other friends too and I have to be there for them just like I always have been for her. I don't know what to do really.
Nichole