A fellow student at my university is too nosey with social media. What to do?

[Kristina]

Theres this lady who is a lot older than all of us other paralegal students and she seems to be treating us all like shes our advisor, or treating us as we are younger than her. She friended us all on facebook, and whenever she gets an email from the director of our major she always forwards it to us(when we all get that email in the first place) Its like she has to be the leader of everything and thinks all of the rest of us dont pay attention to things like signing up for next semester classes. Whats really annoying me is that shes "liking" ALL of my stuff on facebook, and is just all up on my emails and social media. I dont need that. WHat should I do? I would REALLY like to stop communicating with her altogether, but I dont want to start anything as we are all girls..