Hmm...I wonder what the symbolism here is. I can't quite think of anything. Whatever it's supposed to mean, it's just a bit too vague.
This room's obviously an over exaggeration, but Sunny lending Kel 20$ is clearly a thing that consistently happened over their friendship. How did he explain to Mari or even his parents where the money was going? Maybe he told them the truth instead of lying, but I for some reason doubt that.