He can see Drift relax, to his own relief. Scaring him (and he knows he could've) wasn't part of his intention. His own eyes soften at seeing that, as if his opinion actually meant something to him. That seemed so rare now, now that the war was over.

...

Ah, there we go. The realization of what he just said sunk in, and while Optimus may be oblivious to anything like this directed at him, he can certainly see it in these two. And the guilty look on Drift's face was as clear as day. If Rodimus wasn't going to own up to it, Drift certainly couldn't hide that secret.

"I'm glad." But he holds up a hand, as if he has more to say. "Rodimus needs someone who can bring out the best in him. If that's you, I want you to be aware of your weaknesses."

His eyes flick down a moment. Can you tell how much that little asshole means to him, Drift? "Does he know how intimate you feel?"