It is your business/choice how you feed. I’d be concerned about your partners attitude - what’s his issue.
For thousands of years babies have fed from all sorts of shaped nipples. Don’t assume you can’t.
BF is tricky for most people for the first few days - getting baby to latch, getting comfortable. It takes patience, time, perseverance.
The pay off is that once you get the hang of it, it is brilliant (well it has been for me). It is convenient, now it is easy. No prep, no sterilising, no getting properly up in middle of night, no carrying about bottles, no having to pay! It is also really good for helping your baby bump disappear.
Those are all the benefits beyond the already well documented benefits to baby.
If you want to do it then commit yourself, read about it, speak to midwife, watch videos on latch etc - be ready to overcome early day hurdles.
That said every breastfeed someone gives their baby is worthwhile, even if you only do a day, a week, a month.
I think it is an amazing thing and absolutely love it. Not everyone has that experience though.