Was I in the wrong? (Roommate trouble)?

I think the situation is that she flipped out because she was feeling left out. Sometimes I've flipped out on my friends for things that seem small but in reality it had a deeper meaning behind it. If I felt like I was being left out I would find a reason to freak out on my friend at the slightest thing just to have a chance to say how I feel. Im not saying it's right, but there's a chance that she felt like you guys were so close, more than you were with the other girls, and was hurt that not only did she hear last but she didn't even hear from you. I think what she needs right now is a friend to talk to and someone to understand what she's going through. It's worth a shot if she's in need.