I have a great relationship with my son and his wife who are expecting their first baby soon, they recently did a gender scan and are having a boy. They both thought it was a girl until this point as did her mum and almost everyone else, as they had talked about being a girl mum/dad etc from the start. However her mums reaction was poor - FFS - send him back and how could you do this to me when I wanted a girl was the first reaction. She tried to then humour everyone with I will just have to get used to it etc etc.
and made it all about her (it will be first grandchild for her- not for me) I was so angry with her as I saw the reaction to her outburst first hand and how it affected the couple. so do I step in and tell her what I think of her reaction and risk some animosity between us or just let it go and leave it for them to say something if they wish??