We're going to be taking her to the vet as soon as possible because of how thin she is. We want to make sure she'll be okay but we can't keep her because my fiancée is allergic (though I bet he'd want to keep her xD ). I'm browsing through all the lost-pets boards and we're prob going to put some posters around. I'm not sure we'll be able to find it's owner but at least I've got a few co-workers who'd love to take her in so this story should have a happy ending.
We're keeping bunny and her separate though we let her walk around (under supervision so they don't get close). She seems to have gotten pretty quickly that she wasn't supposed to go play with the rabbit and she keeps away from his roaming area. Last night she seemed to really want to stay with us but after a day of living in our bathroom and understanding we weren't leaving her, she just hangs around her food and the little bed we made her.
thanks for taking the time to answer my question guys, it's much appreciated.