milne & randellia - milne crashes nearby her village, randellia takes her in for a bit then kicks her out later because she's an awful roommate
milne & iclyn - idfk. i want to change it because the current reason makes no fucking sense, i think iclyn should be stuck on earth too maybe but idk
milne & zinc - milne finds a job at handy's mechanic shop, they realize she doesn't have anywhere to live so let her stay with them for the time being
iclyn & zinc - iclyn is dragged with milne
iclyn & randellia - no idea
zinc & randellia - no idea

milne and randellia.. sort of get along at first. randi is kind of annoyed by milne but there's no real hostility between them. after milne is kicked out randellia allows milne to visit whenever since their village is a sort of safe space for crizlyns that want to get away from geocantra but she does NOT want to LIVE with milne at the time. now they're having gay se i mean i wouldn't say they're fully in a relationship in canon but they're definitely both interested in each other

milne and iclyn, when they first meet iclyn is basically just milne's guide dog. milne has no clue about how anything on earth works and is a little annoyed and embarrassed about needing a child to help her get around. it sure does feed iclyn's ego though
later on, after milne opens up a little, they learn more about each other and both milne and randellia help iclyn learn more about how to use her abilities, the two of them are basically sisters. mother and daughter? whatever. they're like family.

randellia was very awkward around iclyn, she knows she's not good with kids and iclyn is far too energetic and full of herself for her liking. iclyn learns to behave herself a little more though and randi gets used to her noise. iclyn still likes to mess around with randellia often, but they're good friends

zinc is a little skeptic about milne and iclyn at first and doesn't like having other people in his space, but gets more friendly as time goes on. they still annoy him, but they're all friends. randellia and zinc don't really know each other well, though. they see each other in passing but thats about it