No more blanket

So, for the first time in her short almost 11 months my little Katelyn Marie, the attachment to my hip, has screamed for her Daddy. She didn't want me tonight. She wanted her Daddy to rock her and be there when she fell asleep. I don't know what to do with myself. A few months ago I would given anything for a break and for Chris to be able to take her for a minute or two without her wanting me right back. She seemed to be ever so attached to my every move and breath longing for more. I loved that. I think I secretly craved it. Don't get me wrong, I am only human and can not take the constantness of her crying and never being appeased by anyone but me all the time for months on end and from time to time DO need a break. But for the first time she didn't want me she wanted her Daddy. What am I supposed to do with myself? I guess this is the first step in dealing with a child letting go of their security blanket of Mommy. I am thrilled she will be a Daddy's girl but somewhere in the back of my mind I believed that I would be her number one til she was old and married. Selfish isn't it? I know. It is. And to think...after almost 11 months I thought I would be overwhelmed with joy at her "wanting" someone other than me. I guess I am surprised at my ignorance every single day. I don't want her to "let go". Ever.