I think the first few weeks of a new baby are a bit of an exhausting fog that pass by before you even realise it. You don't need to bond with the baby, you haven't bonding hormones. I don't think she needs to say thank you either if you have already been thanked. Bettter to just let that go or you are just creating resentment. It might be that mum isn't feeling very put together, no energy for housework or getting dressed etc and worried about people seeing her and thinking badly of her. Maybe call and ask of you can do anything helpful like take a meal over or some shopping, make it all about concern for them and being helpful. Don't be surprised if you don't get to hold baby the first few times though, don't even ask, just bring mum a cup of tea or a glass of water and cross your fingers x