I Have Family Members That Get On My Nerves

My aunt is visiting...and she's staying in our house..which she and my mother owns. We need to share the house but my aunt stalls every time we try to. Living together w them, is, as u can imagine...controversial. They spread rumors abt me before...so i know they dont like me...(probably because of the land issue) She keeps throwing words at me related to.me. w my bf. Today is my Cuz birthday and months before plans were made for me to help. I spent lastnite by my bf and he dropped me home early today, when I walked in.... My aunts first words were 'hey we need u to be home today, a few days before she said things like 'don't go anywhere on N bday k', 'remember u have to help in N bday. The repeated statements are getting to me. What do i say to her to get her to know I'm a grown ass woman and u can't talk to me.like that.