my objectively correct opinions on the four main hatchetfield couples pet name usage based almost exclusively off vibes that i thought too much about during an 8 hour black friday shift and then didn’t reference the source material whatsoever so if any of the actual musicals contradict this no they don’t:
emma would never once use a pet name she calls that man paul and that’s it
paul also isn’t huge on nicknames, he might call her ‘em’ or ‘ems’ sometimes, but nothing cutesy
correction: they may, very sarcastically, call each other babe or baby, but don’t get it twisted-- they’re actively mocking the very concept of the word when they do it
they are canonically a babe couple, they have never once said baby, they use babe and babe only
lex absolutely calls ethan ‘e’ and i’ll die on this hill
she also calls him pretty boy in very specific (and probably sexual) circumstances and he’s a goddamn puddle every time and you know i'm correct
ethan uses a lot of pet names but somehow he makes it work like it’s almost never cringe, he’s hitting lex over the head with sweetheart’s, and waking her up with ciao bella’s, and really fondly sarcastic sunshine’s
they also both use shit like idiot and dumbass as pet names but that seems obvious
god they use the most parent ass pet names
honey, sweetheart, baby, dear, pumpkin,,, oh man
they absolutely hit each other with ‘hey gorgeous’ ‘hey handsome’ on the daily
when they were in high school becky probably called him ‘tommy’, and he called her ‘beck’ (he still does that in current day)
they’re probably slightly more reserved with pet names than they were in high school, but they used to be that unbearable ass couple who never used the other person’s name it was only the cutesy nickname version or ‘babybabehoney’
peter uses ‘steph’ like a pet name, if he tried anything more than that he would be unbearably awkward with it
(and… he does try, he’s called her babe like three times ever, and hits her with a ‘hey good lookin’’ or something else adorably lame, and every time he felt really stupid and steph was fucking soup about it like she’s down so bad for this boy)
the only thing he can manage with any dignity is calling her beautiful occasionally and it’s only when the energy is absolutley 110% correct
steph is cool enough to use babe liberally, but she usually just uses his name, or calls him ‘spankoffski’, y’know, like a cool person
she sometimes calls him baby, but it’s almost only when he’s upset or has a nightmare, like it's a very specific concerned steph vibe