When you started traveling with the Doctor a few months ago, you'd noticed something immediately. He was protective. Well, in his defense, you were a teenager. He'd told you that you were one of his youngest companions, which explained some of his behavior...

But the Doctor wasn't just a little protective, no. It was more so "I'll throw myself in front of a bullet for you" protective. Which is exactly what the bastard had done.

So now both of you were in the TARDIS while you tried to patch it up. You weren't very experienced in bandaging a bullet wound, but the Doctor was telling you what to do. You were kinda pissed; he'd literally almost regenerated for you. You could've tanked the bullet! He winced as you finished up.

"Oi, be careful, kid." He scolded lightly, though there was no heat to his words.