Only read the OP and OPs replies so sorry if repeating.
My DD fed CONSTANTLY 24/7!!!
She had (has):
75% tongue tie (both anterior and posterior - the latter are very hard to spot/diagnose and was missed the first time by the lactation consultant who performed the first TT snip)
Severe silent reflux - she would not actually vomit but would comfort suck 24/7 because the milk soothed the burning feeling in her throat
Colic
Cowsmilk protien allergy and soy allergy
She screamed a lot (!!!) and did not sleep or settle
I had to go on a very strict dairy and soy exclusion diet, and she needed 20mg omeprazole to achieve symptom control.
Cluster feeding is normal, literally feeding 24/7 is usually not.
The website Kellymom is a good BF resource which I found very useful at helping me understand 'normal' cluster feeding
The book 'colic solved' all about reflux was invaluable
Google Dr McKenna and his 20+years of scientific research into infant sleep at the notre dame university to understand what are normal expectations for infant sleep, it may help inform your decisions
Ps, your DH is being an unsupportive passive aggressive arse by saying that and I'm surprised he's still standing tbh!!