[Jetfire's quiet for a few seconds, before he nods, and there might be a small smile of appreciation on his faceplates, but it's hard to tell.]

Thank you.

[The grumbling, quite frankly, he ignores; usual Starscream behaviour when deigning to do as asked, and when what was asked isn't what he wanted to do.]

Yes, I understand. I would just prefer if you don't go off and get yourself injured immediately after coming here. Talking of injuries... how did Bumblebee fare?

[That seems to be the most neutral way of asking is Starscream did as Jetfire had wanted him to do, even if he hadn't outright asked Starscream to save the yellow minibot.]