some general thoughts/dynamics midge has with the main characters! of course, any and all of this is variable based on individual interaction, but just starting point of how midge tends to view them.
midge connects with astarion right away. she can see through his manipulation tactics rather quickly, given her high skills in charisma and manipulation herself, but it doesn't bother her, nor does she make it known that she knows what he's doing. she finds him very funny and enjoys having him around, gossiping with him and getting his opinion on whatever's going on. she accepts his input and tries to convince him to follow her way of thinking, usually by some means of 'come ooon, it'll be fun! I promise!', whether that's getting him to go along with squashing a camp of goblins or on a completely ridiculous charade of lies to sneak into somewhere. it perhaps takes astarion a while to realize he has midge's friendship and protection at no cost, and that she simply likes him very much.
gale quickly dazzles midge with his smart words and fancy magic. she loves to hear what he has to say and often asks ridiculous questions to see what answer he'll come up with. she's eager to hear his side of an issue, because he's smart but also not too swayed by good or evil in terms of morality. she certainly keeps him on his toes, and one might think he would do well to keep an eye on her, just so she doesn't do something TOO stupid. he's a good balancing weight for her.
based on first impressions and stories of him, midge thought halsin would be an all serious, focused (if not very attractive) head druid who would scold her like any other serious type. but after saving him from the goblin camp and getting to know him a little bit more, midge's views changed quickly for the better, finding him very calming. very sweet. very much like a big, gentle bear she would quite like to pester to see him yawn and get a look at those big teeth. like a mentor, sort of. she loves to show him the things she finds and tell him the ideas she has. she has an innate connection with nature that not many others relate to, and finds a kinship with him in that.
midge sees karlach and has an instant gay panic. she crushes hard and quickly and makes a fool of herself at first, but laughs it off easily enough. the two of them tend to get on like fire and oil, encouraging each other's flames to burn brighter and hotter. their energy and enthusiasm levels are just about equal, and they can usually be relied on to entertain each other. underneath, they both have an almost childlike loneliness that yearns for companionship. they're likely to commit arson together.
from the start, lae'zal can't stand midge. midge is everything lae'zal isn't. she's easily distracted, undisciplined, silly, unfocused. to midge, lae'zal is boring and strict. if it wasn't for circumstance forcing them together, it's entirely reasonable that lae'zal might have left immediately. over time, they grow on each other a little. midge is friendly and certainly effective in battle, and she doesn't stand in lae'zal's way to complete her quest. when the vlaakith truth comes to light, midge stands with her.
midge isn't quite sure what to make of shadowheart from the beginning. in contrast to lae'zal, shadowheart is at least friendly and amicable enough, if a bit dry to midge's standards. but midge keeps trying to break through shadowheart's shell, trying to make her laugh. midge considers religion and faith to be an ignorable trait and doesn't understand why shar or selune are a big deal, which helps toward not ostracizing shadowheart for her beliefs, but it also makes it difficult for midge to be very interested. it takes a while for them to find a real common ground.
the greatest source of bonding between midge and wyll is that they're both very friendly, and that serves well enough to keep them united. in every other way, they might as well be opposites. where wyll is a folk hero, fighting for the good of the people with every breath, midge is an anti-villain, accidentally stumbling into doing the right things for the wrong reasons. if midge had more focus, she might be very bad news for society as a whole, enjoying causing mayhem for anyone — innocent and villains alike. but as it is, if they don't focus on the ways they're different, they serve as good enough allies.