Baby refusing bottle?

Vanessa • Single mommy to baby Ava 05-31-16💕💜
So idk what my little ones deal is, but i switched from EBF to only pumping now and during the day she takes her bottle fine but the past three nights she wants to cry and cry and cry until im about to lose my shit. She basically doubles what she eats at her nighttime feeding and then its a fight to get her to eat!! She will take two swallows and then push the bottle away and then scream until i give her the bottle again and she has me at my wit's end with this, i have tried her pacifier too, she knows the difference. She'll immediately spit it out if its not what she wants. Just wanted to. Vent because idk whats going on with her since its making me lose my mind