If by "getting to the bottom of this" you mean "getting someone killed," then yeah. It seems like you're on the right track.

[Oh wait- That's not the conflict avoidant way to answer, is it? Dimitri clenches his fists, making an attempt to hold his temper in check.]

Really now. You carry her up the stairs, because you both know something is preventing her from climbing them herself. Did you have a plan for what would happen if she got hurt from it? Decisive doesn't mean smart.