My 3 months old baby girl suddenly refuse to take bottle, she prefer latching, previously I have no problem in breastfeeding and bottle feed. What happened?

Baby has learnt to recognized that mummy has milk. To have mummy with me is to latch. Baby has known to learn safe and security, and comfort. It is not a bad thing but if you are preparing to return to work, you may want to consider getting someone to bottle feed in the daytime and you latch in the night time so that baby will be trained to know that daytime mummy has to work and will be home at night. I wanted wean baby off my breast to bottle but failed terribly so I gave up. I just latch her. However I only returned to work when my LO was one year old. She drank from cup in the day and latches at night.