Jason Todd.

You are a recent hero/heroine, an apprentice of Bruce Wayne, you were Jason's best friend, but when he realized that you were Bruce's apprentice, he began to be a little distant with you, although he could not deny that he had become fond of you, so he almost always bothered you, one night when you needed help with Jason, Jason was leaning on a lamppost with his arms crossed

"Uhm, I don't know... tell Batman, see if he's willing to help you out."

You visibly annoyed, you crossed your arms looking at Jason and said

"Whatever you want, I won't count on you again" When you turned to leave, Jason grabbed your hand before you left

"You know I'm joking, right?..."

When he saw that you were still upset, he sighed and approached you, gently letting go of your hand

"Okay, you win."

You changed your annoyed frown to a small smile, he looked at your face and couldn't help but smile back, but then he said

"Hey, darling, don't think that because of your cute smile I'm going to forget so easily that you work with Batman."

You rolled your eyes and punched him in the arm, Jason just laughed, their camaraderie was stronger than any problem