My dad and his gf have been together for like 15 years. She has 2 kids and 2 grandchildren and my dad has 3 kids including me and then 7 grandchildren. The y have a place at the beach and we each get a few weekends to go down there and visit. My husband and I just went for our weekend with our kids and the entire weekend my dad and his gf were talking crap on my brother his wife and their kids. I can only assume they talk about us just the same, but what sucks is they act like her kids and grandchildren are amazing and of course they don't do anything wrong. I am extremely upset about this and I don't kno what to do. I feel like telling my brother how they were criticizing his family behind his back and then just cutting them out of my life but I'm not sure if I should just ignore it and be the bigger person....