I'm confused, is the new girlfriend causing the problem since he never told you he was allergic before? I mean I can understand someone being allergic and asking you not to bring your dog, but the way he spoke to you showed no respect what-so-ever. I choose not to be around people like that, since its family that's so hard; we often have to make exceptions for family. I think your hubby should have a heart to heart with his brother and his brother owes you an apology. So sorry you and Peanut were treated that way. Just in case you don’t want to take the high road, send you BIL this picture of Peanut!