I CAN'T TAKE IT ANYMORE!!!!!! MY BFF'S GOTTA GO!! HELP ME!!!!!!?

My BFF Violet's been staying with us for like 4 days now. My parents told me to let her stay until she's ready to go back home and I said fine. But lately, I NEVER get to have privacy or alone time anymore. Like I would watch tv and she just plops next to me and changes the channel. Then she would just leave her stuff in the bathroom and everything! everywhere I go, she goes. I would go for a walk and she would just go with me. I usually go by myself. Look, I love my BFF, but she's driving me crazy!!! My parents have been complaining about her. I NEVER get any "Me" time anymore! They told me to talk to her, but I don't know what to say! I don't wanna be mean to her! Why do I have to talk to her? SHE NEEDS TO LEAVE NOW!!! She's at the store and will be back in a few minutes!! HELP ME!!!!