the point isn't even that andrey stamatin is the ideal boyfriend or that eva yan is in a perfect relationship or whatever. you see andrey's (and peter's, inseparably, because the andrey-peter-maria-eva square has to be looked at as a whole) relationships and you go "wow what the fuck is that guy's problem"
but then there's some strange initiative to act as if eva is an uncomplicated outlier completely dissociated from the chaos of andrey and the stamatins and the rest of the utopians, and some people seem to forget that the interconnectedness of the utopians is, like, important. like real fucking important!! (at least to path hd, god forbid the way the series erodes the utopian love polygon into "the stamatins kind of know maria and eva is also there")
eva's willingness to enter a relationship with andrey is not some comphet-driven settlement nor is she being "used" by him. her promiscuity has literally nothing to do with him, at least not him specifically. eva's characterized by her open arms: she's a lover, she's attractive both in physical appearance and in her virtue, she's comforting and she comforts deliberately. she's careless in a sense that she isn't nearly as jaded as everyone else, but she's not completely thoughtless---peter insists she must have an ambitious imagination, she can withstand living in the stillwater, she is supportive and admiring, she definitely has complex feelings toward the cathedral---she's a hedonist and she excels in it. she's the first to offer daniil a place to stay, she's in an open relationship and implied bisexual and constantly indulging herself... she is weird, and she deserves to be weird! she's a utopian for a reason. her problem isn't that she gives terrible people the benefit of a doubt and saying it is oversimplifies her to the point of insult
when andrey says "She was free to choose her own life and do as she pleased, but she was my woman." on day 7, he's explaining to daniil the context of the worms describing eva as such. he goes on to say "I would have gladly switched places with you, but she [Maria] obviously would never see an equal in me... and it's irrelevant now anyway."
people seem to interpret this line as him saying "your girlfriend is better than my girlfriend, i wish i could have yours instead lol" forgetting that 1. this is being said while discussing eva's death at the cathedral 2. andrey is outwardly possessive toward more than just eva, and in the same line confesses that he does not own eva---"my woman" is more of a sentimentality. he relates his relationship with eva to his feelings for maria and then immediately says that obviously maria doesn't even see herself as his equal---if the "my woman" line were meant to be possessive, he'd be relating that possession to what he wants for maria, and god fucking knows andrey stamatin is not professing to want to possess maria kaina. the entire conversation daniil has with him about maria before the escape attempt makes that laughable
lesbian eva headcanons are fine and all, nothing wrong with giving characters labels, but eva's bisexuality and her open relationship is a facet of her character and reducing her to "woman being unfairly used by all of the men in the town" is just a real fucking boring reading of pchd
and evandrey is hilarious. craziest guy in town and his insanely loving and benevolent girlfriend who, upon further inspection, has a completely different kind of freak just absolutely bizarre out of left field and suddenly andrey seems, like, philosophically normal. and then you start talking about his niece-daughter-building and maria and jokes on you for expecting this town to have a single "normal" resident