People Who Invite Themselves

I was going to go shopping with my friends today and my mom was going to drive us, then suddenly this girl I really don’t like texted me and asked what time she’s getting picked up. I never invited her! Turns out my friends brought it up around to her and she just decided to come! And now I have to put up with her and pretend to like her so I don’t seem mean. And what’s worse is none if my friends even like her that much!