Talk:Lexa/@comment-178.173.6.35-20160203183601/@comment-26269248-20160203185550

I'll answer the best I can. I agree that it doesn't make 100% logical sense, but remember that she was always acting as a military leader with what he was given.

When Finn shot the 18 Grounders in Indra's village, it was murder (not self-defense) for the 1st 1 he killed was an old man trying to escape/not fight back, and the other Grounders only tried to stop Finn. In Lexa's mind this was an act of war/terror (as she explained to Kane and Jaha in Fog Of War), and in order to make peace with the Sky People they need to execute the murderer (further explained in Long Into An Abyss).

She let the Mount Weather missile blow up Tondc in order to prevent the Mountain Men from knowing that Bellamy was on the inside and could use it to further the coalition to unite the clans together to bring down the facility once and for all.

She never forgave the Mountain Men for using the Grounder's blood (nor should she or any of them), but she (as Clarke explained to her) that the bone marrow of the Sky People is more beneficial to the Mountain Men than her people's blood.

And (this where the logic comes into question), she realized that if she sent her troops into the facility to just bring down the military and not wipeout the Mountain Men, then she puts her people at risk of being killed (since they don't know the facility/have the guns). So, when Dante/Cage/Emerson contacted her to make the trade (the 100-200 Grounder prisoners for peace/leaving the Sky People behind) she took this as a take it now or regret it forever decision to save her people since that is who she has been trying to protect since she became The Commander. In her mind/at the moment, this seemed like the best military decision she could make (guaranteed the survival of all her people at the moment), even if it meant betraying her ally (which is where the illogical decision making comes in since she betrayed Clarke (who was the 1 who really came up with these decisions/strategies).

Finally, Lexa probably didn't consider what would happen to the Mountain Men/Sky People after this, and (as she explained) she did what she had to do for the survival of her people; she wasn't being heartless, she was just making the most strategic decision that was presented to her. And if she had considered long term what the outcomes were from this, she probably didn't think that Clarke would singlehandedly wipeout the Mountain Men on her own.

So again, Lexa made the most logical decision she could at the moment, though it is debatable given how she betrayed her ally to do it, and Clarke took a course of action that Lexa never considered.