Being a mage it wouldn't be unlikely they'd met or even befriended one another. I'm open to that friendship being one of a solid bond. Dalaran would more or less be a second home to her and once having left the alliance would be where she put herself up when not traveling. Though they could also have only seen one another in passing. Entirely up to you. Knowledge is my character's favorite pursuit and she wouldn't shy away from conversation with a Blood Elf regardless to their history. Though obviously she wouldn't try to form any bonds with those who held what she considered an ancient and fruitless grudge between their people. Stormwind would have been one of her favorite places thanks to the library and mage tower but only up to the point where Dalaran was easily accessible to her.