From about an hour after her birth DD has always been a daddy's girl. He was the only one who could settle her as a newborn. She'd only come to me for a feed then all she wanted was daddy. She will allow me to play with her during the day but as soon as daddy walks in that door she tells me go away mummy daddy home now. It breaks my heart too. She will give me kises and cuddles but she is most definitely a major daddy's girl. Everyone can pick up on it the second they see the three of us together. They have an unbelievably strong bond and he can get her to do things that I can't. If Dave and I arrive together to pick her up she pushes me aside and races to DH screaming daddy daddy daddy yay daddy!! I get acknowledged later on. I'm just biding my time because she is going to want to date at some stage and that is when she's going to need her mummy, LOL!!
But I'm with you Amber, it does make my heart ache/hurt.