i cant stop thinking about how bruce didnt 100% understand exactly HOW HARD peter hits when he grabbed him by the back of the neck 💀 did he process that differently after seeing peter hold up the building?
he's seen more of peter's other abilities than he has strength. i.e. his stealth and his agility. however, spider-man caught a bus before and that wouldn't have gone unnoticed. bruce was very aware that peter could have very well kicked him to next week- but the building thing would have been a "hm" moment for him. because spider-man caught a bus, sure. but now we're getting up there in strength- an entire building, held up for several minutes.
if peter was up to standard for nutrition and training, etc, then he wouldn't have blacked out. it would have been far easier and that caught bruce's attention more than anything. alfred started making a nutritional diet for peter to make up for what he's lost, and damian started testing out what peter already does and doesn't know/can do. bruce has been paying attention to all of it. i've hinted that bruce would be helping peter with his spider-sense later, but there's more to that than JUST spider-sense. we'll get to know more about that during friendsgiving
also: bruce been working with and has worked against supers for a good chunk of his career. so if he'd have taken the hit, he'd have treated it like it was nothing and PETER would have been the one freaked out in this situation. bruce is so so so human but he is terrifying at the end of the day.
(it would have hurt SOOOO bad but bruce would be pretending he's fine)