He looks surprised (in a very good way) when she kisses him on the cheek, and he laughs once, breathlessly. Oh. Oh, he has it bad.

"I will. Hope work goes well!" César closes the door and puts a hand on his cheek, marveling that he got a kiss from her.

There's a brief... thing he has to do after he removes his outdoor clothes and before going to bed. But it doesn't take too long afterwards for him to settle down for the night. He even forgets to lock his door, because he's literally so tired (and distracted) to remember basic OPSEC.