Okay, so here is the story. Last year, I was able to choose what dorm room I wanted to be in for this year and who my roommate would be. My friend and I decided to be roommates. We both said we wanted the bed by the window but never ended up coming to a decision since I figured it would just work itself out. So about two weeks ago I asked her what day she was planning on moving in to the dorms, the options were Thursday the 25th, Friday the 26th, or Saturday the 27th. She told me on Saturday, and I told her I was planning to move in on Thursday but was planning to come back home til Sunday since I have plans for the weekend. It was a coincidence that I would be moving in before her but I admit I was pleased because that meant I could get the bed I wanted. On Wednesday night I texted her asking if she was still moving in on Saturday. But she didn't answer me. On Thursday morning my dad and I left my house at 9 am to drive down to school, which takes about 2 hours. On our way there my roommate texts me saying "Oh I already moved in, I'm here now". Which means she must have left her house at the crack of dawn to be down there that early, meaning she probably got there early so she could be sure to get there before me. I immediately knew she'd taken the bed I had wanted. And yes yes, I know I had no claim to it and I was planning on taking it too...but the thing that really bothers me is how sneaky she was about it. When I'd clearly told her when I was moving in.
Now here is the other piece to the story, my roommate lives within 10 miles of where I live so last year she would ride home with me whenever I went home since she didn't have a car. She never paid me all that much for gas, but it never bothered me since I figured I would be driving there whether she was with me or not. So when this whole bed thing went down, my dad, who always wants to make a deal, told me to tell her that if she wants rides this year she needs to give me that bed. But since we've both moved all of our stuff in that would just be a hassle. Now, she's been asking me if I can give her a ride down to school on Sunday with me... I really liked the idea of leaving without telling her then when she texts me asking about it I'd say "Oh I already left, I'm here now." Very petty and spiteful but what can I say? I am irritated. Of course, I am not going to be quite so rude, I do have to live with her....but I don't want to do nothing.
So here is my question, what do you think I should do?