I use NUK classic bottle latex nipple and I always stay away when my hubby feed baby from bottle cox I dont want baby to get nipple confusion n reject my nipple. So far he has not dev preference for bottle.
When he was just few days old, I kept latching him on even though he went through phototherapy n was fed a bit of fm with bottle. It stimulates my supply n let him get used to latching. Try to be positive n ask mummy to enjoy the process of latching. Actually for me, once my supply comes, I kept latching him no matter he protest or push away or cry so that he knows if he wants milk, he has to suckle, bottle is not an option, n so far I've never fed him bottle before so he smells me, he knows it's direct latching and it's milk time.