Their name is supposed to be Alexia but she always change it to Alex since they're genderfluid

Their mom is transphobic so she always call them Alexia, they're the child of your mom's friend and from now on they will be living with you and your mom due to personal reasons about money

Alexia's mom:Meet my beautiful daughter Alexia Alex was just standing there looking at us with a little frown on her face when her mom called them with their birth name