It's okay for Grimmjow to poke fun at you and make jokes, it's all in good spirit after all. You both knew he never really meant the things he said, but let him catch someone else degrading you…
You weren’t planning on telling him how upset you were that someone had insulted your intelligence, their harsh words repeating over and over in your head, tormenting you. But he knew you too well, knew there was something wrong when you ignored him, attempting to flee, your eyes red and puffy from crying. He wouldn’t let you get away so easily.
“What’s wrong with you?” He demanded to know roughly. “Why are you acting wimpier than usual?”
You were about to tell him to leave you alone and go away when you caught a flicker of concern in his glacial eyes. Maybe it was all in your head, but in your vulnerable state, you crumbled before him, whining and whimpering to him about the person who hurt your feelings.
Under normal circumstances, he'd tease you about being a crybaby and tell you to grow up, but he couldn't bring himself to say anything of the sort this time. Jaw clenched and fists balled, he barked at you to stop crying, assuring you, "I'll take care of it."
"What?" Your eyes widened. "What are you going to do?"
"Don't worry about it." He was already stalking away, a menacing gleam in his eyes.
After that, the person who had been so cruel to you seemed to avoid you, scurrying away each time you neared with fear in their eyes. You weren’t entirely clueless when it came to Grimmjow’s violent nature, so you didn’t have much trouble imagining what he could have possibly done to them. You didn’t fully condone it, but you weren’t going to complain either. Obviously, whatever he had done worked in your favor.
The next time you saw him, you shared your gratitude. "I'm not sure what you did, but thank you."
“Yeah, whatever. You’re welcome,” he huffed, pink rising to his cheeks. You didn’t expect him to say any more on the matter, but then, “if someone ever says shit to you again, you come get me,” he ordered, avoiding your eyes.
An excited grin spread on your face. Feeling brave, with his cheek turned towards you, you seized the moment, leaning forward and pressing your lips to his warm skin. “Thanks again, hothead.”
He was about to snap at you for touching him without his permission, spinning around to face you with glaring eyes, that is, until he saw your adorable, stupid smile. He turned back away instead, his cheeks growing impossibly hotter.