Context: MC and his friends are talking with 1 girl (C-san), who just broke out of a castle's siege (alone with no soldiers), then ran to them asking for help
A-san and B-san are members of MC team.
MC: ............. (staring at A-san)
MC's thought: 賊退治をB-sanと二人でしてた愛紗に言われてもなぁ……と思ったけど、さすがに口には出さないでおく。
I'm not quite clear about what he's meant here, so if anyone can please help me to understand.
(my guess: "So A-san criticize C-san's action was reckless, when she and B-san even with just 2 people - have exterminated an entire bandit huh ..... That's what I had in mind, but as expected I will keep this to myself" ? feel free to correct me)