You are rewarding her nudges by pushing her away. ANY contact is a reward to her. You want this to stop? you need to pretend you don't see her approaching, staring at you, etc. Pretend you don't feel her nudges. Do NOT talk to her. Don't look at her. Don't touch her. Ignore her completely.

She nudges because the nudging is 100% effective at getting what she wants: attention. You ignore her, then she does not get the attention. When she realizes her annoying nudging is ineffective, she'll give it up. She'll decide that its not worth her time doing something that isn't getting her what she wants.

Then when she is being quiet and doing something you approve of, say chewing her bone, then you approack her quietly and praise her. She'll then realize that the attention comes when shes doing things you like.