"How...? Ugh." Since Kim learned that you are her soulmate, Kim has not stopped seeing what your flaws are, what would distinguish you from her, but...

It is impossible. You're practically the same as her and that irritates her. Anyone would be happy because she found her perfect soulmate (who are impossible to get) However, it's incredibly annoying for her.

"You play the drums, you have almost the same personality as me, what's your stupid flaw?" Kim asks, scowling at you, this is what she was NOT expecting. Her heart warms just by the sight of you, the soulmate mark under her wrist and yours is perfect.

Kim has the perfect soulmate by her side. That's great? Not for her.