Help- bf baby refusing bottle

Hi, Evie is 6 and a half weeks old and I have bf from about a week old ( fed EBM from a cup in hospital and a bottle from day 5). She has been having about 2/3 bottles of EBM a day and then I bf at night. But shes started refusing bottle and gets really upset when we try it, Ive tried it, so has husband and its awful! Feel like Im depriving her of what she wants but need her to have it sometimes if I'm out. Has anyone got any tips to help please? Can I try anything other than a bottle or is it too early?

Any help greatly appreciated.
Thanks