Juyeong leaving behind the broken pieces of his patience (unfixed) may in part be indicating this or foreshadowing that this could become an issue again in the future, but:
They didn't really resolve the entirety of the issue here. Jarim expressing that she likes him is of course important and perhaps the more fundamental issue that was at play, and her explaining she's not embarrassed of him is good. However, there's also the issue of her ignoring him and his feelings through the entire date (even when he attempted to talk to her) and that she even planned the double date when they were supposed to have an important date (even if she didn't realise his feelings about Christmass Eve, she still planned it without asking).
I wonder if the lack of resolution here means the author intends to tackle these issues more later on or if it's implied they were also resolved by proxy. The broken pieces at the end could in theory also imply a liberation and development for Juyeong, but they seemed a little too ominous for it to be just that.
