Bonding with mommy

I am mother to my precious and bright 12 month old daughter who I stay home to care for. She is close with me and I am her primary caregiver unless she is with my mother or my husband. I have 2 behavioral scenarios that I wanted feedback on please: 1- when my mom is around (who is like a big playmate for my daughter and never does anything that may upset her such as placing her in her pack and play for a minute or changing her when she does not want to but needs it-this is usually left to me or my husband) my daughter does not want to be with me or anyone else but my mom, even going so far as to cry when I take her from mom, though she usually does not cry when my mom leaves. Has anyone else experienced this behavior? Have I done something wrong in bonding that I should have done? 2-my daughter usually wants her mommy and loves cuddling with me and her dad.I have noticd a new behavior: she will kiss her dad but she won't kiss me anymore, instead she will blow a kiss to me(which is what I do to her when she is sitting with her dad). I get the feeling she is reaching for her independence when I ask her to come to mommy and give mommy a kiss she does not do it and will get intensely interested in something else. What can I do to turn this around?