I'm going to do something controversial
and defend Paris of Troy (well... sort of... he's still a dick, fuck that guy... but like... also in a very unenviable position)
reminder, there isn't really a mythological "canon", I do not intend to deliver to you the 100% canon accurate interpretation of the story of Paris, because there is no such thing.
Moving on, Paris' situation was kinda fucked, and I think there's some interesting things to be said
let us first explain who Paris is for those unaware, most of what I'm about to say is recounted in PseudoApollodorus' Bibliotheca
Paris was born to Hecuba and Priam, queen and king of the city of Troy
before he was born his mother had a nightmare that she would birth a torch that consumed the city in flame, and it was decided that this meant her son would bring the downfall of Troy
they wanted to kill him, but the guy they had kill him chickened out and chose the human option... of leaving him in the wilderness to die, as one does. You know what they say, if can't use Plan B, Plan C it is.
now luckily (or rather unluckily) he survived, and came to be raised as a shepherd. Interestingly according to Ovid, and I believe nobody else, Paris actually was a slave during this period of his life, though it makes sense, many abandoned children did get enslaved, to my knowledge, this was especially common in Rome, so this may be Ovid viewing this through a particularly Roman lens here.
According to PseudoApollodorus, Paris was pretty cool in his childhood, getting the name Alexandros, "defender of men" for being cool, and fighting off bandits and shit.
Eventually, through details we sadly lack to my knowledge, Paris fell in love with a nymph, Oenone. Sadly, there's not a ton attested about her, but what we do have seems to portray a genuinely positive relationship, though Oenone prophesied its eventually end due to the love he would develop for a foreign princess which would be his undoing.
moving on to the famous Judgement of Paris. Hera, Aphrodite, and Athena appear before the young Paris, and ask him which goddess is the most beautiful, and each offered him something in return for his answer being them. I want to note... there was no good answer here, I've seen people say "well [insert answer] would've been better." there wasn't a good answer, it would always have pissed off two of these goddesses, and also most certainly lead to Paris' and Troy's downfall, because that is what the Fates foretold, you can't just get out of a prophesy, any action would just lead you back to it.
In many ways, his choice of Aphrodite for the hand of Helen is actually a really genre-savvy answer from one perspective. He's promised power, glory, or love, and he chooses love. In many stories this would be the right answer, forsaking those other things for what really matters, love. Of course, this ends up being bad because... well first of he's cheating on Oenone, and, oopsies, Helen is married, and anyone who kidnaps her is going to be invaded by basically every Greek!
Thing is... did Paris know this? Did the shepherd/maybe slave know who tf Helen was? Realistically no. It's very possible in this situation to with no context, think, "Oh the last one seems like the least likely to blow up in my face."
as for the cheating thing, let me remind you... Aphrodite is the goddess of love, her retinue, the Erotes were generally believed to be able to overcome people with immense romantic feelings
In the Fall of Troy by Quintus Smyrnaeus, Paris tells Oenone as he dies, that it was not of his will that he abandoned her
now, the easiest way to take this is Paris is begging for his life, and is trying to present himself as a victim to evoke empathy to convince her to help him
however... considering the gods involved... yeah no it's possible he's being genuine here
In Ovid's Heroides, Oenone says this "Your tears fell as you left me – this, at least, deny not! We mingled our weeping, each a prey to grief; the elm is not so closely clasped by the clinging vine as was my neck by your embracing arms." which certainly strengthens the idea that Paris was heavily conflicted but moved by divine will
admittedly, I don't have much else to say, but idk, just some interesting things I don't see mentioned that often in reference to Paris (I also learned that Ovid called him a slave once? I did not know this, I learned this while looking for sources, oddly I've never seen anyone talk about this, I'm more interested in this now than anything else, like, I know it's just one line, but damn now I'm really curious what stories Ovid had access to that are today lost that made him say that.)
oh yeah also, you're welcome for siting my sources, because so many other sites I found talking about Paris that I read as a refresher, just didn't have sources, not even Wikipedia for a lot of that! I'm still mad about that so I made sure to mention my sources, if anything due to being petty and wanting to be better