ok but. what makes the twins such a great team and devastating tragedy is that they're fundamental opposites and basically cancel each other's shortcomings out. they *need* each other. lemon has a (quote from lemon's actor) "slow, chill kind of vibe" that's reflected in his speech as opposed to tangerine's spitfire, constantly aggressive way of talking.
BUT ALSO (more so obviously in the book, since we can see through his point of view) tangerine clearly thinks he's smarter than everyone and isn't afraid to say or prove it. he gets pissed at lemon for trying to correct him on how many people they killed and launches the narrative into this montage that proves him right. when tangerine finds ladybug, he takes the precious time to show him the tracker app from the phone ladybug stole from lemon to emphasise ladybug's oversight and tangerine's solution.
lemon is the one who doesn't notice little details. it's tangerine who remembers that guy they accidentally killed. it's tangerine that notices the bloodstain on lemon's shirt. and who's the one who falls for prince's white girl tears bullshit? it's fucking tangerine.
while tangerine is more organised and observant, his emotions are all over the fucking place and it gets the best of him. he falls for the prince's act multiple times. ladybug takes advantage of his anxieties during the "are you gonna get that? might be important" scene. the white death shocks him into silence by saying he'll look him in the eyes as he kills him and his brother.
but lemon, he reads people. he can see people objectively. it's lemon who notices that prince assumes briefcase instead of everyone else who assumes suitcase becuase it's an overnight train. it's lemon who considers ladybug's (albeit scruffed) attempts at betterment and insists he didn't kill percy.
and tangerine, who's petty and aggressive and exudes this aura of self-proclaimed superiority in everything he does and presents himself to be, knows lemon well enough to genuinely trust him at each turn and judgment. he trusts lemon's judgement of ladybug and prince in their most crucial moments. tangerine knows lemon wouldn't fall for the prince's bullshit like he would (and does) and the moment he sees the diesel sicker as an indicator of lemon's judgement, any sympathy he had for prince vanishes. lemon even manages to talk him down from his speech about how they fucked up and the white death is Going to kill them and convince him that things can still be fixed.
and, like, the instance they have to operate alone, distant and individually, they literally can't and die in both instances.
