Ryumin is a sweetheart and I wish him the best, but that wasn't bad luck. Bad luck is her laptop crashing and burning unexpectedly. This was him not sending a simple text and Yooil having to pay nearly $450 that she did not have to spend on a meal. Luckily for her, she's seems to be very unaware of his apparent crush on her and she still has that fan/idol thing going on with her, so I think she'll be very understanding of the whole situation. But he's unfortunately not someone she can rely on with how her life is setup right now.