So my granddaughters mum has just had a new baby (not my daughter) with her new partner. Who I cannot stand and has made no effort to bother with us,despite us welcoming him from day one. I cannot stand his parents who seem to have shoved us out of the way and are acting like our granddaughters grandparents. Apart from gifts at Christmas etc do we have to have a relationship with the baby? Is wrong to be jealous of the new grandparents?