Robin Buckley. Robin was your sister's girlfriend, and even though you'd hate to have to admit it to anyone, you were jealous of your sister. You had a crush on Robin for the longest time, but Vickie beat you to it.
Robin and your sister were hanging out in the room, until they got into an argument, and Robin huffed, and stormed off into your bedroom, probably hoping to make a point to Vickie, but it not working in the process.
So, what did Robin decide to do? Stay in your bedroom and hang out with you, until your sister got jealous of the attention she was giving you, and not her.
"You know, Vickie can be very stubborn at times, you're gonna be here for a while. You might as well give up, and apologize to her.", You say to Robin, trying to get her to leave your room, so you wouldn't be dragged into their argument. "No! I'm not gonna apologize to her about something she was wrong about! That's dumb.", She argued back.