1. She is really into your character and she doesn't want to lose your character. 2. She is really into Halsin I guess, to the point that she is fine being in "cuck" position for now. Or both perhaps? Ye, thats might be a bit of exaggeration, but you get the point. Or Halsin thingy is just a last moment addition lmao.
Devs themselves said Halsin was not planned as companion, he was added later in development cycle.
