Magic Forums

Hello, I am wondering about what I should do about a situation I am in.
I have a fairly new friend. We both practice Wicca.
I am pulling away from this friend as she is a bit too high maintenance.
She wants to hang out and does not have the awareness to leave my house when I am hinting that I have work to do. This is constant.
She mentioned to me that someone recently made her mad, so she cast a spell on this person. I took it as a veiled threat to me when she said "this is one witch you don't want to piss off". I feel as if she is trying to keep me as her friend through threatening. If this makes sense?
So, I am interested in a shield spell, in case she is trying to do me or my family, or business harm.
Thanks and Blessings