Christening problem my mum is annoyed over who i picked for god parents?

i use to be in foster care and i still talk to my mum it was only for a few years that i was in foster care.i picked my foster care parents as my babys god parents and my mumwent mad she said she now nos who i trust my baby with but my baby sees her nanny more than she sees my foster parents and my mum never went to the christening and wont talk to me and im really annoyed over this and dont no what to do should i keep texting her even though she never texts back.am really annoyed at her