Reject breast milk?

Hi, it must be difficult for you. How about e.g. 75% Formula milk and 25% in a bottle (e.g. 150mL FM + 50mL BM) - Or even lesser BM. Then you gradually adjust the ratio? Defrosted BM usually have a more pronouced smell so your baby might a sharp a taste. Mixing milk in a bottle could work

probably he is too used to formula milk taste. usually if mixed feeing it's formula fed in the middle of the night so that baby overall is still taking breastmilk throughout the day