Hi,

My hat is off to you in admiration for still sticking in with it. I hope you have made it round that corner!
Evening fussiness, the "arsenic hour (s)" or "drinks and nibbles" is almost universally described. (and doesn't finish at babyhood - school aged children come home from school and eat non stop for several hours.) We don't know what it is with babies, but almost certainly it's not hunger. So as you've experienced filling him up doesn't really help - he keeps coming back for more. If you can arrange things so you are well fed, have a drink, can be as relaxed as possible, just let him rest feed, you will get through it. Usually after that he will zonk out for a long sleep, no formula needed
Warm Regards
Barb