I think it's talking about how 'awful situations' come in threes: the first would be his mom dying (?) or the bad review on his families restaurant, the second would be his dad's death, and the third could be coming? It could also just be talking about how it's a love triangle and the 'coming' could be sexual.
wait I misread your comment, im so sorry (〜￣△￣)〜
No you’re good, your theory could be right as well! I’m just assumed it’s about the three main men in his life….our poor sweet baby┗( T﹏T )┛
I now understand the title of the manga
Poor Joon, surrounded by crazy people ╥﹏╥