My sister just gave birth to a baby in three months of her marriage, but the kid is white and my sister is visibly mixed race (black/white) while her husband is black. How do I handle this situation?

Let me explain, I'm mixed race, my dad's black and my mom is white. I currently live with my parents, and I have sister. My sister is also mixed race, I don't know why, but for some reason she only had white friends and she never got along with our family, she never had anything to do with us. <br><br>Her wedding was held in another state. My parents were also invited, but declined. I never understood what caused the rift between my sister and our family. It's just like that. I think she's always hated us being part black. I didn't go to her wedding either, because I felt the same way, and because of that I refused to go. <br><br>She recently had a baby, so I thought I'd go visit, but then I found out that the baby wasn't black. I think her husband cheated on her. My parents were very upset when they saw the baby, and my mom was particularly upset. Because she was so anxious about whether my sister was doing okay, and this is how it turned out. Honestly, I'm curious about the whole thing, and I'm going to ask my sister about it when I go there.