They don't have to support your parenting style, they're not his parents.
I do however have to say that she's a little bit right on something though and when its your first, and he's so little, its hard to get your head round. That's to say that, when food/milk is available to them, babies really won't starve themselves. My son was FF by that age and even he, who was used to bottles (and finally stable on reflux meds) would go entire days fighting with his bottle and we'd worry he wasn't getting enough. It's tough, but once they get the idea that milk comes out of bottles too, it does get easier (mostly, then they just find new things to worry you with, I believe this goes on for the rest of your natural life!)
ETA have you tried getting someone else to offer him the bottle while you're off somewhere else out of sight? Just I know my LO had a hard time taking a bottle from me when he could smell milk from me
I do however have to say that she's a little bit right on something though and when its your first, and he's so little, its hard to get your head round. That's to say that, when food/milk is available to them, babies really won't starve themselves. My son was FF by that age and even he, who was used to bottles (and finally stable on reflux meds) would go entire days fighting with his bottle and we'd worry he wasn't getting enough. It's tough, but once they get the idea that milk comes out of bottles too, it does get easier (mostly, then they just find new things to worry you with, I believe this goes on for the rest of your natural life!)
ETA have you tried getting someone else to offer him the bottle while you're off somewhere else out of sight? Just I know my LO had a hard time taking a bottle from me when he could smell milk from me