Damian is not exactly the.... 'nurturing' sort. People should take care of themselves, that's the way of things. Independence is important. Reliance is weakness. He doesn't approve of weaknesses.
But you're seeming pretty weak right now, and it's starting to bother him. You're stronger than this. You are. He knows that. He's seen your strength. Envied it, on occasion, if he's honest with himself. You are powerful, capable, independent, strong - so to see you be taken down by something like illness? It's wrong. It's just wrong.
Such an invisible, insidious opponent. And so difficult to fight. It's wrong and it's stupid and it's not fair, but those are the thoughts of a child, and he's grown past that sort of thing, hasn't he?
...It really isn't fair though.
So yes, Damian is not exactly the nurturing sort, and he doesn't approve of weakness. But he can't quite seem to just leave you to this fight of yours alone. He can't quite seem to keep himself from your bedside. He's not worried - he's not, no matter how many times you accuse him of it. He just... he wants to see you get better faster, okay? You're strong, and so you being this weak is just wrong, and maybe you shouldn't just be left to take care of yourself in this state. Okay? Maybe.
Maybe the rules change a little bit when you care about somebody. What of it?
So here he is, parked by your bedside again, frowning an unspoken threat at the thermometer as if he could convince it to show him a more acceptable number than it has been recently. Unfortunately, that's not really how thermometers work. He snatches it up as soon as it beeps.
"Tch," he huffs as he reads the result. Too high - much too high for his liking. "You have been taking your medicine as prescribed, haven't you?" It's not intentionally accusatory, he just... wants a route he can pursue to fix this faster, curse it all.