Mother telling achievement of her friends daughter

So i went to kitchen for my dinner and my mom startes telling me what daughter of her friend who graduatesd 4 years after me is progressing inher career. ( while she with her narcissist husband who is sadly my father ruined my career. My father didnt let me do work in my home country, dont give me pocket money and never let me study in peace for my foreign exams)
So why is she even telling me what others are doing in their life. It doesnt make her look caring and considerate. She doesnt remember what they have done to me literally wasted my 5 6 years