to be honest if I was in her spot I would honestly sit him down and make him watch all of this episodes with a challenge "try to guess what you did wrong"...

It's sad cause this is a misunderstanding that could be resolved if they were to sit down and talk

Well, it was due time for her to finally let it out. He asked her to be on the show, this by itself probably led her to assume that there's a chance of them getting back together. Her breaking down on the candy incident was probably her realizing as well that there is now 0% probability that they still have a chance to work thinngs out. Despite her crying...she's strong cause me personally I would want to go home.

Hwihyeon is literally still very young. He looks carefree. That's why he does things without thinking it deeply and I actually understand his actions. We made immature decisions when we were young and that's exactly what he did in this case.

Which episode?