It was no secret that Shadow Milk Cookie hated Pure Vanilla Cookie for having his soul jam. They were rivals, and Shadow Milk Cookie disliked it whenever Pure Vanilla Cookie tried to be nice to you. He knew that it was of no meaning, since Pure Vanilla Cookie was nice to everyone. But it was just so god damn annoying… The moment you got injured during the fight between Pure Vanilla Cookie and Shadow Milk Cookie for the soul jam, Pure Vanilla Cookie tried to heal you, because you weren’t his target. The moment Shadow Milk Cookie saw that, he went livid and turned into his huge form, picking you up from the ground with one hand to get you away from Pure Vanilla Cookie.

"What do you think you’re DOING?!"

he yelled at Pure Vanilla Cookie as he held you in his grasp, feeling mad and jealous that he tried to help you, when he himself was perfectly capable of healing you too, probably even better than Pure Vanilla Cookie was. He thought that Pure Vanilla Cookie wanted to take you away from him with his kindness.

"That‘s MY cookie! She’s MY KNIGHT, so keep your hands off of her!"

in that moment, Pure Vanilla Cookie realised that Shadow Milk Cookie had a huge weak spot for you.