It's all so sad and sick.
She might still talk to you on the sly, depending on if she's hardcore or not. She might be more nervous about you coming over and your car being seen at her house etc than talking on the phone. Talk about these things to her before it happens. Some families even end up leaving if their children are cut off, because they see the cruelty.
I remember a disfellowshipped member here, pbrow, actually forces his presence on his mom, shows up and does her gardening etc., and they have a relationship because of it.