Standing up, she grabbed the box that held the ring from her chest, caressing the soft sily wrap of gold around it before slipping it into the pockets of her robes, she still had to get through the day to come to the night. Which would be hard...
Another thing she had to consider would be when and how to pull Alice away from the party? While many will be thrown off guard just by the mere fact that she, Bellatrix Black, was at a party that wasn't Slytherin, there would more than likely be that annoying factor named Frank Longbottom.
Deciding that she wasn't going to let that get in her way, she made her way out of the common room, ignoring the advances of Lestrange and the cuddling couple of her sister and Malfoy. It was really rather disgustng, unproper even, but still. She'd rather hang the boy of a balcony by his skivies than have his paws on her sister. But what could she do? She had Alice to focus on.
Her mood was considerably lighter than usual, and undampen by the fact that she was paired up with Rodolphus at potions. He had even noticed, as she was sure most everyone was now.