NEVER share good news with parents. They will ALWAYS criticize you for it. Like, when I got an accident settlement from being hit by a truck, my mom's response to the large amount was, "You should have asked for more."

Do not align your boss' choice of promoting you to your mother's awful, critical comment which was...really nasty. What is wrong with her to say such a thing? Do not connect those two things together. Your mother is just a mean person for saying that to you. Jesus.