There's a moment where he wants to tell Kai to tell her not to worry, but that sort of contradicts his earlier plan to not make Kai feel like he has to meddle between them.

He didn't expect her to be totally fine after all of that, but if she's unhurt, that's better than the alternative, especially if they managed to get up to something that ended up with Kai injured. Instead, he just looks over that last message over and over for a moment, sighing gently as he does. Even after all that, after he pressed her to the point of hurting her, she's worried about him. Jeez...

He sits back on his heels, carefully tapping out a reply that hopefully doesn't warrant Kai saying anything else.

Ok
Thank you.
Both of you stay safe, I'll see you when you get back.