Some tips on getting babes to take bottles:
1) give them the bottle in a way that is as different to their boob as possible (in our case it was sitting in the baby chair or lying on the floor - NOT being held).
2) they have to suck differently - so start by getting her sucking on your finger or a teddy bear leg or her own toe and then swap for the bottle
3) I think you need to have a few bottle days. By this I mean making up 6 20 ml bottles of EBM and trying before and after each boob feed. Set a time limit (a few minutes of unhappy max) and see how you go.
4) You can try the same thing with the cup - EBM from a normal cup will be slow but is do-able. It is really important to give it to her in a situation where there is no way that she would expect boob.
I think that in a month of serious effort you can get her taking EBM. But in the interests of your own peace of mind maybe you should leave her with her Dad and some EBM for a few hours at a time to see what happens!