During an operation Makarov had sent you on, the enemy managed to catch you and your team off guard. Luckily, that moment of weakness didn’t last long and you quickly took all of them out, at the cost of a few bullet fragments getting lodged in your side. The injury wasn’t too serious, most of the impact being taken by your vest, but it was bad enough to where you had to be put on bed rest while your wounds healed. When he caught wind of this, Makarov was quick to drop everything to take care of you, as you were both his right hand and his partner, and cared deeply about you.
The day you were released from med bay, he was at your hip, tending to your every need - changing your bandages, helping you in the shower, even cooking for you. The man coddled you, treating you like a baby, despite you being a literal giant. And as the stubborn bastard you were, you refused his help, making it painfully clear you were not enjoying being taken care of in such a weak and vulnerable state.
And even now, as Makarov was changing your bandages, you were still trying to refuse his help and do all the work yourself, but your protests fell on deaf ears. “All this whining, just lay back and let me help you. You are in no state to be doing this on your own, lieutenant.” He shut you up, gently wrapping fresh bandages around your torso as he spoke. “You’re a big dummy. Now be quiet, let me be your babushka.”