You misunderstand, i'm not complaining about this outcome. If that's how it works out, then it's how it is. It'll make a solid story, too.
For what's worth, when i picked these options, i was looking to craft a narrative where Lena doesn't manage to make clean break from her past immediately, and is genuinely impressed by Seymour, but ultimately finds her own footing. This was partly because my experience with EK's game was, they'd offer multiple entry/exit points from character story arcs, rather than "you need to stick to the path from get-go" which is how other games usually do it.