I can actually see Ian saying something to the effect of “I’m interested in seeing where this goes, after we finish executing the world-murdering monster and all of its minions” … To me that makes a lot of sense since Ian suspects Adah won’t be able to accept that he (apparently) intends to kill the minions’ families as well.
Would be nice if this is how it typically happened in real life.
As long as this isn’t followed up with “Let’s just be friends” … lol