He felt extremely agitated as he drove; his frustration was evident as the veins in his neck began to protrude, and his jaw clenched tightly while he gripped the steering wheel.

"I explicitly said no, didn't I? So, why did you attend that party?" he demanded, his anger palpable.

You had stubbornly gone against Nanami by attending a party he had blatantly refused you to attend, which had greatly angered him and caused an argument between the two of you.