We didn't know this side of his character since he never interacted with Urumin outside of events.I feel like kimiya was acting out of character for this chapter
That part reads to you like it's his thought as if he was a normal person/fan.That part reads like Kimiya's thought to me though. It doesn't make much sense if it's Urimin's.
But I can see the end result to be what you think; just played out a little differently. I see the story beat going from Urumin's side that she just crumbled from the thought of what she had done. If that's how the next chapter go, its just priming for Kimiya to make a grand come back on her B'Day after he recovers from her word (could be already right now but not shown or on his own after this) and take more shifts to get the fund.